Solange Knowles's new album A Seat at the Table officially comes out today, September 30, and it features a whole roster of exciting collaborators.

Like Beyoncé's Lemonade, A Seat at the Table incorporates a wide variety of guests, from industry vets like Lil Wayne and Q-Tip to up-and-coming singers like Moses Sumney and BJ the Chicago Kid. The album's track list notes that a few songs have been "blessed by" guest vocalists, while others simply list them as featured artists.

Solange's new album grapples with many of the same themes as her big sister's latest: namely, the history of American racism and the challenges inherent in surviving it. Track titles on A Seat at the Table include "F.U.B.U.," "Don't Touch My Hair," and "Borderline (An Ode to Self Care)."

Her extensive guest list says a lot about what Solange has been listening to in the years since she last released new music. Here's a guide to her latest collaborators.

Tweet

Years before her stage name became synonymous with a 140-character quip, Tweet climbed up the charts with her debut single "Oops (Oh My)" in 2002. She laid low for most of the aughts, but the R&B singer came back to release her third album, Charlene, last February. Tweet is credited on three tracks on Solange's new album: "Weary," "Mad," and "F.U.B.U."

Lil Wayne

Weezy's been recording since he was a teen in the '90s, though this year he's been more visible as a guest rapper on songs like Ariana Grande's "Let Me Love You." On A Seat at the Table, he features on "Mad."

Moses Sumney

The L.A.-based singer — he also appears on "Mad" — puts out an EP of his own called Lamentations this Friday. He's known for his beautiful falsetto vocals and his loop pedal skills; in addition to teaming up with Solange, he just released a Thundercat collaboration, and he was spotted covering Prince with Sufjan Stevens at this year's Pitchfork Music Festival.

Sampha

You might recognize Sampha's name from his two features on Drake's 2013 album, Nothing Was the Same. The singer teased his debut album, Process, this year, and he appears as a featured artist on Solange's "Don't Touch My Hair."

Dev Hynes

Also known as Blood Orange, Hynes put out his third album, Freetown Sound, earlier this year. He worked on Solange's 2012 EP, True, and he's credited (as Devonte Hynes of Houston, Texas) on A Seat at the Table's "Interlude: This Moment."

Kelsey Lu

A classically trained cellist from Charlotte, NC, Kelsey Lu sings over her own sparse string compositions on her solo work. She's worked with Dev Hynes before, and she appears alongside him on "Interlude: This Moment" (credited as "Lu of Carolina").

Sean Nicholas Savage

The prolific Montreal singer-songwriter makes offbeat pop songs on his own time and lends additional vocals to Solange's "Where Do We Go."

The-Dream

The singer, producer, and songwriter born Terius Nash has worked with Beyoncé on a number of projects, including "Single Ladies," and earlier this year he lent vocals to Kanye West's "Ultralight Beam." He appears on "F.U.B.U."

BJ the Chicago Kid

BJ appeared on both Anderson .Paak's Malibu and Chance the Rapper's Coloring Book this year, in addition to putting out his major label debut, In My Mind, in February. He sings alongside The-Dream on "F.U.B.U."

Q-Tip

One of the founding members of A Tribe Called Quest, Q-Tip reunited with the group late last year before his lifelong friend and bandmate Phife Dawg passed away in March. He's credited as a featured artist on "Borderline (An Ode to Self Care)."

Kelly Rowland

Beyoncé's former Destiny's Child bandmate has been busy lately with her reality TV series, Chasing Destiny, but she found time to lend vocals to Solange's song “Interlude: I Got So Much Magic, You Can Have It.”

Nia Andrews

The L.A. singer-songwriter put out a new EP called From Here just last month. She's also featured on “Interlude: I Got So Much Magic, You Can Have It.”

Kelela

Kelela put out her breakthrough mixtape Cut 4 Me in 2013, and she's steadily released evocative genre-bending work ever since. She's also based in L.A., and she features on A Seat at the Table's track "Scales."