Charlie Puth took on the Backstreet Boys in the latest Drop the Mic battle, and it was hilarious!
Both of them appeared on TBS's Drop the Mic, and Puth claimed the lads had 'dad bod', made fun of their audience of Mom's and took the mick out of AJ's eyeliner..
But, they gave as good as they got, claiming Puth's a Bieber wannabe and slagged his career.
Ah, the banter.
