The 2015 Hiero Day lineup looks formidable indeed, especially for fans of West Coast underground hip-hop. With almost 50 live acts and DJs performing, the event—which drew more than 20,000 fans last year—appears to have broken through the stratosphere to major event-status, and is certainly the biggest independent hip-hop festival in the Northern California region. That’s a major plus for folks tired of attending mega-hyped music festivals with a dearth of rap or hip-hop artists, and for underground aficionados who have been underserved by mainstream/commercial-oriented rap tours. Best of all, tickets are less than $20—$19.93, to be exact—which portends a high boom-bap for the buck ratio. Oakulture is pretty hyped about the number of underrated/slept-on fan favorites—several of whom are doing reunion shows—scheduled for this year’s event, which cover a full spectrum of stylistic diversity within the underground hip-hop subgenre. We’re also not mad at the emphasis on Bay Area and Los Angeles groups, nor the inclusion of a few representatives from the Midwest and East Coast for balance.

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With so many groups on the bill, it’s unlikely you’ll see every single act, unless you can be in two places at one time, so we’ve prepared a special guide for the artists we think will make Hiero Day extra-fresh.

15. Psalm One

With eight albums and a handful of mixtapes released over the past 12 years, Chicago’s Psalm One is one of the most-prolific indie-label female emcees in the industry today. Affiliated with Minnesota’s Rhymesayers crew, she’s also worked with Hiero’s A-Plus. Her recent video, “Free Hug Life” shows her to be an original, creative spirit with an engaging staccato delivery, and topics which offer an intelligent alternative to rachetry.

14. Phat Kat & Guilty Simpson

This veteran Detroit emcee duo have long collaborated with California’s hip-hop scene – Kat was once signed to SF’s Look Records, while Simpson has released several albums on Stones Throw. Both are authentic Dilla disciples, having cut their teeth working with the legendary producer, and both boast gritty flows which swerve between backpack and hardcore hip-hop flavors.

13. Foreign Legion

First emerging into the Bay Area’s underground hip-hop scene in the late 90s, the terrific trio of emcees Marc Stretch and Prozack Turner and producer DJ Design built a reputation for notable live shows while releasing several full-length albums (and one short film); Their return to active duty promises to be one of the feel-good stories of this year’s Hiero Day. FL maintain a classic underground hip-hop aesthetic, complete with sampled loops and scratching, but flip the script by balancing braggadocio with honesty and humor.

12. Cali Agents

Another West Coast group some might remember from back in the day, the duo of Rasco and Planet Asia released three well-received full-length albums between 2000-2006. Each has had solo success: Rasco is remembered for the Bay Area classic “The Unassisted,” while Asia has collaborated with everyone from Grandmaster Muggs to Bun B to Evidence to Ghostface Killah.  As Cali Agents, their remarkable chemistry elevates their individual lyrical deliveries to a higher level.

11. Otayo Dubb & Equipto

Don’t look now, but this SF-to-the-O hook-up is swiftly creeping on an indie hip-hop come up. The pairing of the Bored Stiff lyrical wonder with the versatile Co-Deez emcee/producer is one of the bright surprises of the current Bay Area scene. Their current single “Baby Steps” addresses maturity and growing up, with an arrangement which subtly recalls classic West Coast soul and R&B. The album of the same name features similarly-sublime production and features from the likes of L’Roneous, Pep Love, and Mars Today.

10. Aceyalone

An original member of Freestyle Fellowship and a prolific solo artist in his own right, Los Angeles hip-hop veteran Aceyalone should need no introduction. The fact that he does lends credence to the oft-cited complaint that lyrical (read: non-gangsta) emcees from the West tend to get slept-on – except by hip-hop nerds who appreciate Acey’s jazz-tinged, highly vocabulistic delivery. Here’s a chance for him to expand beyond his core audience of diehards and reach the ears of a younger generation.

9. Native Guns

Possibly the closest thing Pinoy hip-hop has come to a supergroup is Native Guns, a trio comprised of emcees Bambu and Kiwi and DJ Phatrick who became celebrated multicultural ambassadors during their heyday in the 2000s. Mixing dexterous lyrics and slapping tracks with a fair amount of political and social commentary, they also dropped science on the Filipino-American struggle, and what it means to be an indigenous immigrant. Though both Bambu and Kiwi have remained active as solo artists, their timing of their breakup always seemed unfortunate, coming so soon after the release of their 2006 album Barrel Men – rightfully hailed as a West Coast classic, one which shows the Bay Area was about so much more than hyphy even during the “hyphy era.”

8. The Team

Speaking of the hyphy era, Oakland trio The Team were one of the most buzzworthiest groups of that period, helping to define the region’s then-emergent sound as uptempo, party-friendly, and club-ready, with hooks for days. We haven’t heard from them since 2013’s “Slow Down,” so it should be interesting to see them drop classics like “It’s Getting Hot” and “Bottles Up” and hopefully some new material. Added bonus: Clyde Carson, Kaz Kyzah, and Mayne Mannish are some of the best rapper names ever.

7. Tha Alkaholiks

West Coast OGs since the early 90s, Tha Liks’ 1993 debut album, 21 & Over, is a high-octane hip-hop classic which set a high bar for both lyrics and production. Four subsequent albums followed, the last being 2006’s Firewater, all of which mix hardcore hip-hop with party-oriented themes. One-time disciples of King Tee, they’ve always been a force to be reckoned with in a live context, and there’s no reason to expect anything different from their Hiero Day appearance.

6. The Luniz

Best known for the all-time cannabis anthem/ Bay Area rallying call, “I Got Five On It,” Yukmouth and Numskull are inner-city griots who’ve lived a wilder life than most of us, and put much of it down on record. It’s somewhat gratifying to see them on a bill so saturated with underground and alternative hip-hop – a confirmation of their lyrical finesse, as well as a shout-out to the streets of East Oakland, where Hiero is from.

5. Compton’s Most Wanted

This classic Compton gangsta rap group, possibly second only to NWA in terms of influence and reputation, never enjoyed the mainstream success of their Ruthless peers. But their street-level stories had a louder ring of authenticity to them, and it’s safe to call them some of the originators of “reality rap.” Though they didn’t have an overt political agenda, the sociopolitics and socioeconomic content of songs like “One Time Gaffled Em Up” was omnipresent, and often sublime.

4. Zion-I

Zion-I have held the Bay Area down for 15 years, being one of the most-consistent underground groups in the region, establishing a national and international fanbase, and collaborating with everyone from Deuce Eclipse to Talib Kweli to Too Short. Their long list of classics ranges from “Inner Light” to “The Bay” to “Warrior Dance” to “Don’t Lose Your Head.” Though they’ve experimented with their sound, incorporating everything from EDM to folk, they’ve always maintained strong hip-hop roots. Their latest release, The Rapture: Live From Oaklandia, follows the departure of producer Amp Live, and finds emcee Zumbi Zoom taking things in a more musical direction by featuring a live band led by the incomparable Kev Choice.

3. Crown City Rockers

In the mid 90s to early 2000s, hip-hop band Crown City Rockers were often called the Bay Area’s version of the Roots – mainly for their uncanny ability to swing jazzy, funky musical elements played on real instruments with the cultural b-boy witticisms of frontman Raashaan Ahmad. They boast a solid, if criminally-underrated, catalog of recordings too, from 2001’s One (recorded as Mission) to 2004’s Earthtones to 2009’s The Day After Forever. Their live shows are legendary, if infrequent these days: the last time they performed as a unit in Oakland, at an Old Oakland Farmer’s Market gig, Levende had not yet become District, so prepare to be blown away.

2. The Coup

It was only a matter of time before Boots Riley’s subversive funk/rock/rap band the Coup played Hiero Day, and this is the year. That’s an underground hip-hop lover’s fantasy come true. While we are, once again, in-between new Coup albums, Riley has been highly visible of late with a new book of his lyrics and high-profile media appearances discussing activist issues. Though the Coup’s sound—and personnel—has evolved since 1993’s Kill My Landlord, they are one of the few continuously-active groups from hip-hop’s  90s Golden Age on any coast, and thus did not need to be coaxed out of retirement to do this gig. If you’ve never seen The Coup, expect to be revolutionized and entertained.

1. Hieroglyphics

A member of Hiero recently tweeted that their independent label, Hiero Imperium, has now outlasted the major record label which signed and then dropped them back in the 90s. That’s poetic justice for Oakland’s lyrical laureates, an octagon of obtuse emceeing  and sick beat-making skills, who have given more back to the community from which they came than any other hip-hop artist or group in Bay Area history, while continuing to make more history with each new release and annual iteration of the event bearing their name. Not only do they have more catalog than J. Peterman and Victoria’s Secret combined, but their signature tune, “93 Til Infinity,” never gets old.