Justin Bieber: Shirtless for New Year's Eve 2013 Performance!

Justin Bieber lifts up his shirt and reveals his six-pack abs while performing on Dick Clark’s New Year’s Rockin’ Eve with Ryan Seacrest 2013, which aired on Monday (December 31).
The 18-year-old singer performed three songs – an acoustic version of his hit “Boyfriend,” “Beauty And a Beat,” and “As Long As You Love Me” with Big Sean.
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“2012 has been incredible. hope everyone is having a great new years. Let’s go out BIG and have a great 2013. #MUCHLOVE to everyone! thanks,” Justin tweeted.