Tara Palmer-Tomkinson Upskirt Panty Pictures

Flashing a smile is one thing. But Tara Palmer Tomkinson has resorted to flashing her knickers when she arrives at a party.The socialite - who fought a very public battle with cocaine addiction - twirled and giggled outside the Dorchester Hotel on Sunday afternoon.In a thigh-skimming ra-ra skirt, knee-length studded boots and a black cardigan, she delighted in revealing her white underwear to bemused onlookers.

Former It-Girl Tara - who was attending the Royston Blythe salon party - seemed to be channelling Marilyn Monroe's iconic scene from Some Like it Hot.The end result, however, smacked of desperation rather than class. A classically trained pianist with close links to the Royal Family, Tara first gained notoriety thanks to her partying lifestyle and £400-a-day cocaine habit.Following an almost incoherent appearance on the Frank Skinner Show, she checked herself into an Arizona rehab centre, and has now been sober for seven years.