Peter Bjorn and John (unofficially abbreviated as P B & J) are a Swedish Indie pop band, formed in Stockholm in 1999 and named after the first names of the band's members: Peter Morén (vocals, guitar and harmonica), Björn Yttling (bass guitar, keyboards and vocals) and John Eriksson, known in his solo work as Hortlax Cobra (drums, percussion and vocals). Yttling also worked as producer for the band's first four albums.

They are best known for the 2006 single "Young Folks", which featured Victoria Bergsman, formerly of The Concretes, and was a top 20 hit in the UK Singles Chart, as well as being featured in football video game FIFA 08, the singing game Lips, as the school project in the Bandslam, as the opening track in the Pilot episode of Gossip Girl and the theme tune to British Television adverts for Homebase store. It was also named NME's second-best track of 2006, beaten only by "Over and Over" by Hot Chip. In Australia it was voted number 16 in the annual Triple J Hottest 100 for 2006.