During the "Ellen DeGeneres Show" on 1 March 2012, Justin Bieber revealed the title of the first single of his upcoming album. What is the single called?

Explanation

On Justin's 18th birthday (1 March 2012) he participated in the Ellen DeGeneres Show. During the show Justin revealed that his single "Boyfriend" would be released on 26 March. The song "Boyfriend" which he wrote himself together with Mike Posner, is to be found on his album "Believe".