Justin Bieber's Sound Studio Stop

Hard at work on new material, young pop-sensation Justin Bieber was seen walking up the stairs to hit his sound studio in Los Angeles on Tuesday afternoon (April 10) with two escorts close behind.

The “Never Say Never” singer was sporting his usual high-top kicks and flat-billed hat while he added a tribal-inspired tee and jeans to deck out his outfit.

After the success of his new single “Boyfriend,” an interview was recently released in Seventeen magazine in which Justin explains how to treat a lady.

"I'm just trying to make [Selena] happy, that's all,” he told the magazine. “I think it's important to make all women feel like they're princesses, because every girl is a princess. I'm serious."

The heartthrob has the world at his finger tips right now with his gorgeous girlfriend and talks of recording a duet with Usher, who tweeted, “Ohh...and trust we got a duet coming for "LOOKING 4 MYSELF" and "BELIEVE" he has come a long way. Proud to see his evolution as an artist!” yesterday (April 9).

Enjoy the pictures of Justin Bieber out at the sound studio in Los Angeles (April 10).