"Beliebers" have got to believe it! Justin Bieber just gets sexier every day. All those working out have paid off as the Canadian teen sensation looks smoking hot in a dance video he shared on Instagram.

The “One Less Lonely Girl” singer is sure to make millions of "Beliebers" scream as they see him go shirtless and flaunt his “crazy abs.”

Selena’s ex took to Instagram and shared a clip featuring him and a back-up dancer during rehearsals. It is also interesting to note that while Justin’s dancer is fully-clothed, Justin was rehearsing all shirtless, showing off his muscles, and sexy abs. The singer also flaunted his full-sleeved tattoo as he was flexing his muscles while practicing his routine.

Another video had been posted by the singer which featured the singer and the dancer in a studio performing drool-worthy and sexy dance moves.

The caption along with the video stated: “Preview.”

HollywoodLife.com noted that “preview” could only mean two things: One, the clip is a sneak peek for Justin’s upcoming music video that Selena’s ex has currently been working on. Two, the video could also mean a preview for his new film, “Believe” and the featurette gives fans behind-the-scenes look at the rehearsals.

Check out Justin Bieber’s hottest looks in the shirtless video by clicking here.

Meanwhile, the singer had recently launched his new music video, “All That Matters.” It features the pop singer and model, Cailin Russo, who shared a number of make-out scenes for the music video. A scene in the video showed Selena’s ex, holding Cailin’s leg up.
With his latest music video, it looks like the singer is making a very quick progress shedding off his boy image and becoming a truly, hot, sexy Hollywood hunk as he continues to man up in the recent months.

Justin is currently in Australia for a series of shows as part of the final leg of his “Believe” world tour. He will be "Down Under" until the first week of December 2013.

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