Hip-hop is just as contagious as a catchy pop track, which is why music lovers relish hip-pop collaborations.
The rumor mill had been swirling for weeks now that Justin Bieber's new single "Boyfriend" was going to be "super hip-hop," and Biebs confirmed all those sentiments.
Bieber kicked off his career as a bubble gum pop star, but as a fan of hip-hop, Bieber wanted to expand his music horizons with heavy beats and lots of bass.
Bieber traded in his pop stars for some rap bars, and voila, "Boyfriend" is born.
GlobalGrind decided to round up a few of our favorite pop stars who not only collaborate with rappers, but who actually embrace the art in all forms, including beats and visuals.
Whether they've rapped on a track or just simply used a hardcore hip-hop beat, GlobalGrind has them all.
Check out our 7 favorite pop stars who went a little hip in their pop!