Boy-band fans seem to know everything about their favorite group, but how much do other boy bands know about one another? Well, MTV News wanted to find out. Before they united on stage for at the first-ever MixTape Festival at Hershey Stadium, we caught up with pioneer boy band New Kids on the Block, recently reunited 98 Degrees and newcomers The Wanted, and put them up to the ultimate boy-band quiz.

We quizzed each group on the other bands at MixTape, including the Backstreet Boys, who performed with New Kids on the Block as NKOTBSB. While some questions posed no challenge, others proved a bit more puzzling.

First up, we tested the knowledge of the veteran boy bands on the newbies, asking if they could name us three members of the Wanted. While New Kids on the Block's Joey McIntyre said the question was "too easy," 98 Degrees member Drew Lachey wasn't as successful. "The bald one, the guy with the dark bigger hair and then the other one," Lachey responded.

There was one question that seemed to stump all three groups: Which 1998 Backstreet Boy video won a Moonman at the VMAs? New Kids' Donnie Wahlberg said, "I'm gonna go with 'I Want It That Way,' " while Jeff Timmons from 98 Degrees guessed "As Long as You Love Me."

Watch the video to find out which boy bander got the right answer and witness the rest of their hysterical answers to some of boy bands' toughest questions!