Living the high (end) life! 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.