Songfacts®:

• Swedish House Mafia is a house music group consisting of Swedish club DJs and producers Axwell, Sebastian Ingrosso and Steve Angello. This floor filling track is a vocal version of the trio's instrumental, "One."
• The song features American rapper Pharrell Williams, who told MTV News how his vocals ended up on the song. "We just kept seeing each other at festivals," Williams said. "We were doing a show and they did this beat that they played in their set, and I was like, 'Man! That beat is crazy!' Finally, he was like, 'Look, just one of these days, can you drop by the studio and just do something?' I played a couple of chords and sang, 'I wanna know your name.' It was really quick and really simple. So those guys just chopped it up and just used it as they did. They are really talented guys."
• The song was released in the United Kingdom on July 25, 2010 and entered at #7 in the UK Singles chart, instantly becoming one of the most successful chart singles for any of its collaborators, though Axwell did achieve a #6 single with his own "I Found You" in 2007.
• Christian Larson and Henrik Hanson directed the video and Pharrell does not appear in the clip. Few changes were made between this promo and the video for "One."