Peter Bjorn and John is a Swedish indie pop band formed in 1999 in Stockholm. The group consists of three members: Peter Morén, Björn Yttling, and John Eriksson. They are known for their catchy melodies and harmonious vocals, blending elements of pop, rock, and folk. The band gained international recognition with their hit single "Young Folks" in 2006, which features a distinctive whistling melody. Over the years, they have released several albums, showcasing their evolving sound and artistic style, while maintaining a loyal fan base around the world.