« Numb/Encore » is a song by American rapper Jay-Z and rock band Linkin Park from their album Collision Course, (2004). It was released as a single on November 16, 2004, by Warner Bros. andRoc-A-Fella Records. The song, which combines lyrics from Linkin Park’s 2003 single « Numb » and « Encore » by Jay-Z, also featured background vocals by Kanye West.