"Life on Mars?" is a song by the English singer-songwriter David Bowie, first released on his 1971 album Hunky Dory. Bowie wrote the song as a parody of Frank Sinatra's "My Way". "Life on Mars?" was recorded on 6 August 1971 at Trident Studios in London, and was co-produced by Bowie and Ken Scott. Bowie's backing band consisted of guitarist and string arranger Mick Ronson, bassist Trevor Bolder, drummer Mick Woodmansey and Strawbs member Rick Wakeman on piano. "Life on Mars?" is primarily a glam rock ballad, with elements of cabaret and art rock; it has a complex structure that includes chord changes throughout. The lyrics are about a girl who goes to a cinema to escape reality, and include surreal images that reflect optimism and the effects of Hollywood.

David Robert Jones, known professionally as David Bowie, was an English singer, songwriter, musician, and actor. He is regarded as one of the most influential musicians of the 20th century. Bowie was acclaimed by critics and musicians, particularly for his innovative work during the 1970s. His career was marked by reinvention and visual presentation, and his music and stagecraft had a significant impact on popular music.