On 50 Cent’s “The Final Lap” tour, Ed Sheeran surprised 50 Cent fans at London’s O2 Arena.

TMZ film shows 50 telling the crowd to “turn it up even more” as a gigantic digital box descends onstage to Ed’s “Shape Of You.”

The unexpected pop crossover confused rap fans as they could hear the British singer’s live vocals in the distance. When 50 tells the audience to “put their hands up,” the box rises to reveal Ed.

Concertgoers cheered and grabbed their phones to capture the dramatic musical collaboration. 50 Cent has brought out many artists on tour, including Busta Rhymes and Eminem.

Which artists would you like to see collaborate together?