Snoop Dogg and Kendrick Lamar pose backstage at the BET Hip Hop Awards 2013

Kendrick Lamar's 'To Pimp a Butterfly': 10 Key Collaborators

Kendrick Lamar’s sophomore album, To Pimp a Butterfly, carries a more expansive sound than the Compton rapper’s lauded debut, 2012’s good kid, m.A.A.d city — and while the new LP doesn’t include showy guest verses from Drake and Dr. Dre, it does offer an impressive host of collaborators on the mic, singing behind Kendrick and guiding the sound of the album.

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