Dang! We're not sure which of these boyz is cuter ... what a duo! Their swag factor is serious off the charts!

Khalil (geniusly) asked pal Justin Bieber to join him on his new track Playtime and the result is smoooooth. Is Justin crying over Selena? Who's Khalil not playing games with? The world may never know, but we now have one hot track to listen to while we ponder these questions ...