Björn Again is an ABBA-based musical tribute act from Australia, featuring performers from various countries. The name references ABBA's Björn Ulvaeus. The band has given performances worldwide, including one for Russian president Vladimir Putin in 2009.

A tribute act, tribute band, tribute group or tribute artist is a music group, singer, or musician who specifically plays the music of a well-known music act. Tribute acts include individual performers who mimic the songs and style of an artist, such as Elvis impersonators covering the works of Elvis Presley or groups like The Iron Maidens, an all-female band that pays tribute to Iron Maiden.