Britney Spears is back in L.A after reportedly spending two days in Las Vegas for surgical procedures. Although she didn't look any different as she was photographed leaving The Millennium Dance Studio with her cousin. Reportedly Spears will spend $130,000 on plastic surgery and liposuction, dropping four dress sizes in just three months to regain her stunning former shape. Britney set her sights on the drastic makeover to spite estranged husband Kevin Federline, Star magazine reports. She has already started on her treatment by getting LipoDissolve injections that slowly dissolve fat cells. The magazine claims Britney will have 12 of the $1,500 treatments over a 24-week period. The magazine also claims Britney will spend $8,000 on a breast lift, $12,000 for a lower-body lift for the thighs and buttocks, $16,000 liposuction on her back, stomach and love handles, and $6,000 on brachioplasty to tighten up her upper arms.And Spears has also reportedly consulted Beverly Hills plastic surgeon Dr. Raj Kanodia, the man who did work on Jennifer Aniston about a possible nose job. More pics after the jump