"When You're Gone" is a song by Canadian musician Bryan Adams from his album On a Day Like Today (1998). The song features Melanie C of the Spice Girls and was written by Adams and Eliot Kennedy. The CD single of "When You're Gone" also includes a solo version by Adams. "When You're Gone" peaked at number three on the UK Singles Chart and spent 15 weeks in the UK Top 40, with nine of these weeks in the Top 10. With sales of 676,947, "When You're Gone" was the 82nd-best selling single of the 1990s in the UK. It has sold 830,000 copies in the UK as of May 2019. In Adams' native Canada, the song reached number 13, and it became top-ten hit in several countries, including Australia, Ireland, the Netherlands and Norway.
Duet versions have been released on the singles for Adams' "Cloud Number Nine" (1999) and on Melanie C's "If That Were Me" (2000). In 2005, Adams re-recorded the song with Pamela Anderson for the US release of the Anthology greatest hits album. The new version was released to radio as a single.
In November 2017, Adams revealed that Melanie C was not actually his first choice for this duet. "When I was first doing [the song], I asked Sheryl Crow to do it and never heard back from her!", he told the BBC. "I was in LA at the time and got in the lift at the hotel and in walked Mel and I said ‘hey Mel!’ and she said ‘Hi’. I said: ‘We should sing something together’ and she said ‘I’d love to!’ Then I said: 'I’ve got one for you!'"
The song is frequently featured at Adams' concerts. He usually picks a female audience member to sing the song with him. As such, it appears on several CD and DVD releases. In recent years, he also performed it entirely solo, both fully acoustic and with his full band. Melanie C regularly features the song in her live concerts, with guitarist Greg Hatwell singing Adams' parts. The song is included on her live DVD Live Hits. Melanie C and Bryan Adams have played the song together a couple of times in concert.