Justin Bieber Shirtless, Shows Off Underwear Before 19th Birthday In London [PHOTOS]

Justin Bieber in His undies
What happened to Justin's pants?
Teen singing sensation Justin Bieber is pictured arriving back at his London hotel shirtless, and showing off his pristine while underwear, after performing at a Birmingham gig last night (February 28, 2013).

He tweeted after the show: “Great show!!! Now gonna go celebrate 19!! Thanks.”

We all know that Justin loves showing off his muscles and his is definitely not afraid of being photographed in his underwear, so he was in his element last night.

In spite of the freezing winter weather gripping the capital, the teen heartthrob somewhat bizarrely chose to go shirtless as he arrived at his hotel, with a pair of low-slung trousers barely even covering his bottom as he prepared to get ready for his night on the town.

After a quick change, Justin headed to members-only after-hours club, BLC, by his minders. Shortly after his arrival, his rumored in girlfriend Ella-Paige Roberts-Clarke, was spotted arriving at the nightclub in a pair of form-fitting skinny jeans, a leather biker jacket and a simple white vest.

Selena who?