Justin Bieber and Lil Twist dress down as they drop some cash at luxurious Beverly Hills retailers

The single life seems to be suiting him well.

Just a day after allegedly inviting a bevy of beauties to his apartment in Beverly Hills, Justin Bieber treated himself to some luxurious retail therapy.

The 20-year-old pop star and his pal Lil Twist were reportedly seen shopping at upscale boutiques such as Cartier and Chanel, splashing some of that hard-earned cash.

And the pair were of course escorted by a bodyguard and security to maintain a sense of protection during their public outing.

Though, Justin didn't feel the need to dress to impress as he ventured out in the affluent neighbourhood.

The Baby hitmaker was spotted in a black T-shirt, baggy tracksuit trousers and coordinating trainers.