Joey Fatone Surprises Justin Timberlake on Stage, Michael Bublé & Son Sing "Tearin' Up My Heart"

"Justin Timberlake celebrated TBT in the truest, boy-bandiest way possible last night when Joey Fatone surprised him onstage at his New York City show Thursday.

His NSYNC buddy had been partying up in the Hammerstein Ballroom balcony during the show until he disappeared, reappearing onstage during "Suit & Tie." While Joey was singing with the Tennessee Kids, Justin was unaware, despite screams from the audience."

"And after a few moments of oblivion, JT turned around, saw his ol’ NSYNC pal and said, “Let’s hear it for the Fat One!" - Don’t act like you’ve never called Joey that (love you, Joey)." (It's even Joey's twitter bio...) All in all, the surprise bumped up the fun during the high-energy concert.

But wait...There's more!

Michael Buble Sings, Dances With Son to 'N Sync's "Tearin' Up My Heart" for Joey Fatone

"If you don't already follow Michael Buble on Instagram, do it now. The uber-smooth crooner's social media action is endlessly entertaining, with videos in which he and his band cover other people's hit songs at the request of fans. (His baby son Noah, 11 months, makes some adorable cameos, too.)"

"Recent jam sessions have featured Jay Z's "Empire State of Mind," The Everly Brothers' "Let It Be Me," and 'N Sync's "Tearin' Up My Heart" -- the latter of which was requested by an actual member of the mega-successful boy band, Joey Fatone."

"This is awesome. @realjoeyfatone requested a song from *NSYNC," Buble, 38, captioned the July 10 clip, which shows him rocking out to the 1998 hit song with his band and his cute-as-a-button little boy. (The Grammy winner and his wife, Luisana Lopilato, welcomed Noah in late August 2013.)"

"Here ya go bud! 'Tearin' Up My Heart,'" he added. "Let's pass it along to the other fellas of #NSYNC while we are at it. @justintimberlake @lancebass #jcchasez #chriskirkpatrick"

Buble is currently on his North American To Be Loved tour. In September, he'll head down to South America, and then on to Europe.

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