Heiress/Celebrity Paris Hilton has been looking pretty thin lately. I know, I know, she was looking thin before, but recently she has been looking REALLY thin. Paris Hilton was hosting the Rehab pool party at the Hard Rock Hotel & Casino in Las Vegas on Sunday. While socialite Paris Hilton is known for her slim physique and her skimpy party attire when she wore a hot pink bikini and matching sarong at the Rehab Pool Party, she revealed protruding ribs and ultrathin legs.

In addition to Paris shedding some weight, she has also shed her on and off boyfriend Doug Reinhart. "I am great and enjoying being single," she told Access Hollywood. "He [Doug] is just angry because I broke up with him." Oh Boy, should be interesting, now that single – Paris Hilton is back on the town.