This is the challenge between Charlie Puth and Backstreet Boys. Most of you clearly know about Charlie Puth who is the owner of song: See you again, we don’t talk anymore, attention and other famous song. As the long time, most of us used to hear he sing the song in the type of POP and rock, and we are not easy to see him sing in RAP song, but in this video we make the challenge with the old star is Backstreet Boys. Maybe it is not so fair that Charlie Puth try to win a group including try to stop his own tear, anyway, Charlie Puth still be the winner of that challenge. How amazing Charlie Puthe is!!!