Justin Bieber, the young pop star, has again stunned his fans as he posts his recent picture online. The "Heartbreaker" singer has posted his new 'selfie' and undoubtedly was a surprise for his fans over Instagram.

The pop singer showed off his chiseled body and looked hot than ever. The picture clearly showed his six-pack abs and ripped chest. His bigger biceps completed his awesome look making his fans drool over.

Bieber seems to have put in intense hard work to look as hot as ever in his semi-naked photo. The picture has been uploaded on Oct. 9. This is the second time in a week that he teased his fans with his new hot look.

The Instagram picture shows Pop Star Justin Bieber is being assisted by his trainer who stands smiling next to him. The expression on the trainer's face shows off his pride with Beiber's diligence.

The Instagram photo has a caption, "Me and My Trainer." Patrick Nilsson is Bieber's trainer. The singer is wearing a snapback hat and basketball shorts.

With Bieber's fitness program progressing well recently, he reported he lost some 17 pounds, weighing about 120 pounds now. The teeny yet muscular frame surely looks awesome on the star. He weighed some 137 pounds previously before the training program.

"We all want impressive chest and arms," Bieber told Newsday. He has been regularly exercising as what the results showed.