"Big Brother" is a song by American hip-hop artist Kanye West. It was released on his 2007 studio album, Graduation. The song was produced by Atlanta record producer DJ Toomp. "Big Brother" is a tribute by Kanye dedicated to Jay-Z, containing lyrics that discuss the ups and downs of their friendship. The song received very positive reviews from music critics, who praised West's lyricism and storytelling ability. Though not released as a single, "Big Brother" managed to enter and peak at number nineteen on the U.S. Billboard Bubbling Under R&B/Hip-Hop Singles chart.

"Big Brother" was written by Kanye West while the music was produced by Atlanta record producer DJ Toomp. It stands as the sole track on the entire album not to have production by West. Kanye wrote the song as a tribute to Jay-Z, whom he feels so close to as a friend that he sees him as a brother. The song's hook and concept was conceived while West was riding an elevator. Kanye West's cousin, G.O.O.D. Music soul singer Tony Williams, recalled that Jay-Z himself became quite emotional when West played "Big Brother" for him in the studio for the very first time. When asked of his opinion of the song, Jay-Z responded that he thought it was "brilliantly written" and that it was Kanye's best song since "Jesus Walks" as far as structure and emotion.Digital radio station BBC Radio 1Xtra hosted an exclusive "Audience With Kanye West" on August 14, 2007 at the BBC Radio Music Theatre, where West guided a specially selected audience through his third studio album Graduation. It was there that Kanye claimed that he felt that "Big Brother" is his strongest ever lyrically, career defining record.

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