It was an '80s rock goddess reunion as a once again shaved head Sinead O'Connor, 44, and a wigged out Debbie Harry, 66, from Blondie joined forces at an amfAR event in L.A. last night.
Barbra Streisand kept her infamous mug covered outside Madeo ... maybe she doesn't want to subject us to this again.
Also in L.A.: "Dancing" stars and hasbeens partied at One and Dolce, Kelly Slater tried to sic water-balloon tossing kids on our cameras and Hilary Duff used Villa's curtain cave while her bf hobbled out the front door on crutches.
In NY: Kristi Yamaguchi showed off her mirrorball trophy, as losers Jason Taylor and Cristian de la Fuente stood neaby, Dina and Ali Lohan pimped their show and Debbie Harry went all Rihanna and whipped out an umbrella to keep the camera away.
Sexagenarian Blondie singer Debbie Harry was assisted out of a vehicle in London on Thursday. The step is high! Wearing cataract shades and a classic Mylar Chanel suit from Talbot's Geriatric Goth line, the 62-year-old punk pioneer proved she can still rock sexy, lacy support hose and Mary Jane orthopedic peep-toe pumps like nobody's grandmother!
Britney Spears might miss a lot more 'X Factor' auditions ... because she can! Simon Cowell gave Brit damn near free reign in order to sign the pop star to that $15 million deal -- but is it backfiring? We'll tell you what peeps on the set are saying.Plus, Chris Jericho's…