Katy, Macklemore, Britney, Miley, and Lorde.
Vintage Ellie Goulding? Seems about right.
And get ready for a whole lotta Katy Perry.
Featuring a bunch of U.K. pop stars ... and J.Lo.
It's here, it's here, it's finally here!
It's Germany's answer to D.J. Earworm.
Thank you, D.J. Earworm.