"If Today Was Your Last Day" is the third single from Nickelback's sixth studio album Dark Horse. It was originally planned as the first single, to hit all U.S. radio formats September 30, 2008, but was scrapped as the first single in favour of "Gotta Be Somebody". Instead it was released on March 31, 2009. It was produced by Robert John "Mutt" Lange, who produced the entire album. The song was released as a digital download in the U.S. on November 11. "If Today Was Your Last Day" was released in the UK on June 15. The song was performed live for the first time on May 22 at the Manchester Arena in Manchester, England.

Nickelback is a Canadian rock band formed in 1995 in Hanna, Alberta. It is composed of lead guitarist and lead vocalist Chad Kroeger, rhythm guitarist/keyboardist/backing vocalist Ryan Peake, bassist Mike Kroeger, and drummer Daniel Adair. It went through several drummer changes between 1995 and 2005.