Paula Abdul May Skip Simon Cowell's Birthday

Paula Abdul recently announced she was under the weather and on Thursday the former American Idol judge hinted she may be a no-show after all for former colleague Simon Cowell's big 50th birthday bash in London.

More On Paula's Illness

"So bummed! I might not be able to go to Simon's B-day after all. Waiting on the Dr. to see if I'll get over this flu in time,” she wrote on her Twitter page. Abdul added: “Even had a funny surprise in store for him.”

Simon Turns 50

Cowell’s black-tie affair will be 1920’s-themed according to reports and held at the lavish estate Wrotham Park. Elton John, Kate Moss, Kevin Spacey and Piers Morgan are some of the other famous names on the invite list.