CELEBRITY
11/13/2012 04:41 pm ET Updated Nov 14, 2012

Justin Bieber Hot: Singer Flexes Muscle Amid Selena Gomez Breakup Rumors (PHOTO)

Selena Who? Justin Bieber flexed some serious muscle in a photo he posted on Instagram Sunday -- just as news of his breakup with Selena Gomez hit the tabloids. The black-and-white photo shows the 18-year-old pop star topless and dressed in white briefs, with the caption: "What song is next."

The "As Long As You Love Me" singer, who was reportedly dumped by longtime love Gomez, sang "Cry Me A River" on Saturday while on tour in Boston. Looks like he's attempting to follow his own advice.

justin bieber hot

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