"I Believe" is a song by German pop group Bro'Sis. It was written by Alex Christensen, Jens Klein, Peter Könemann, and Clyde "J. Ena" "Ward and produced by the former for their debut studio album Never Forget (Where You Come From) (2001). The song was released as the band's debut single on December 10, 2001, following their formation on the RTL II reality television show Popstars – Du bist mein Traum. It became the year's Christmas number one in Germany and spent five consecutive weeks at number one, achieving a triple platinum certification from the Bundesverband Musikindustrie (BVMI).