Check this out as New Kids on the Block teams up with the Backstreet Boys closing performance at the 2010 American Music Awards held at the Nokia Theatre L.A.
I admit, I've been a fan of BSB and Westlife before specially in my high school days. And until now, I still sing some of their songs in karaoke. Oh, I forgot, N Sync too. Here's a proof from N Sync LOL!