Katie Holmes, left, and husband Tom Cruise are seen at the MTV Movie Awards on Sunday June 1, 2008 in Los Angeles. [Agencies]

When you buy a Beverly Hills estate for a reported $35 million, you don’t just throw any old housewarming party.

Tom Cruise and Katie Holmes hosted a lavish, over-the-top housewarming last night for more than 500 guests. The couple and their daughter, Suri, recently moved into the 10,000-square-foot home with seven bedrooms and 10 bathrooms, which they purchased last year.

The party was a who’s who of A-listers. Reese Witherspoon showed up holding hands with boyfriend Jake Gyllenhaal. Kimora Lee Simmons, wearing a red cocktail dress, arrived with Djimon Hounsou. Eva Longoria Parker, in canary yellow cocktail dress, brought her sister as her date. Prince, Sean Combs, Kirstie Alley and Oprah Winfrey all attended the bash.