"Won't Back Down" is a song by American rapper Eminem, featuring American singer Pink. It is the fourth track on his seventh studio album Recovery (2010). The track features production from Aftermath Entertainment producer DJ Khalil, who helped write the song along with Eminem, Erik Alcock, and Columbus "Rahki" Smith. Upon the release of Recovery, the song received generally positive reviews from music critics, who praised its aggressive nature and production. "Won't Back Down" charted at numbers 62, 65, 82, and 87 in the United States, Canada, the United Kingdom, and Australia respectively. It was used in the video game Call of Duty: Black Ops and its trailer as well as the trailers for the films Mission: Impossible – Ghost Protocol and Hitman: Agent 47. Eminem performed the song on Saturday Night Live and Late Night with Jimmy Fallon. Background and composition "Won't Back Down" was written by Eminem, DJ Khalil, Erik Alcock and Columbus "Rahki" Smith. Along with most of the songs from Recovery, "Won't Back Down" was recorded at 54 Sound and Effigy Studios in Ferndale, Michigan, with recording carried out by Mike Strange. The song is one of the few Eminem songs not in a 4:4 time signature, along with "Untitled" (also from Recovery) and "Underground" (from Relapse). Originally, the song was set to be a solo record, with Eminem singing the chorus himself. Later, Liz Rodriguez, who is also featured on Recoverys "25 to Life" and "Almost Famous", recorded the song's chorus. Eminem however, explained in an interview that after recording his vocals for the song, he decided to include Pink on the song as he "felt like she would really smash this record." Rahki co-produced the song with Khalil. On September 12, 2022, a lyric video for Won't Back Down was released on Eminem's YouTube channel. Critical reception Upon its release, "Won't Back Down" received generally positive reviews from most music critics. David Jeffries of Allmusic wrote positively of the song, describing it as a "lurching heavy metal monster" that "could be used as the lead-in to 'Lose Yourself' on any ego-boosting mixtape", but wrote more critically of the lyrics, denouncing the pop culture jokes featured throughout the song, particularly ones aimed at Michael J. Fox, calling the line "Make like Michael J. Fox in your drawers, playin' with an Etch-A-Sketch" "less effective" than other jokes aimed at him. Steve Jones of USA Today described