Prince invited Kendrick Lamar to join him on stage during a concert at Paisley Park in 2014 and for the first time, footage of the performance has been released. The pair performed the relatively Crystal Ball track 'What's My Name,' while Lamar added an original verse. The previously unreleased footage was posted by The Prince Museum on Facebook in partnership with Yahoo and Prince's Paisley Park.

Prince has previously gushed over Kendrick saying, "he just has something he has to say. It's pure" in a rare interview last year. Earlier this year, Lamar also revealed that the two almost collaborated on his album To Pimp A Butterfly, but talked so much in the studio they ran out of time.