Holly Madison (left) and Kendra Wilkinson
Marion Curtis/Startraks Photo
11/07/2008 AT 12:20 PM EST
Holly Madison was always the No. 1 girlfriend in the Playboy Mansion, but she'll be happy playing second fiddle on Kendra Wilkinson's wedding day.
"I told her a better be a bridesmaid," Madison said of her former Girls Next Door
Wilkinson's engagement to Philadelphia Eagles receiver Hank Baskett was announced Thursday
by her famous ex-boyfriend, Playboy
founder Hugh Hefner. A ceremony is set for next June at the famed Playboy Mansion.
"I haven't met [Hank] but she's crazy about him," Madison told PEOPLE at the premiere of Repo! The Genetic Opera
at the Planet Hollywood
Resort and Casino in Las Vegas. "He's a really great influence on her and I'm so happy for her."
And Wilkinson isn't the only Hefner ex who's moved on. Madison admits that she's serious about her new boyfriend
star Criss Angel – who joined her at the movie premiere.
In fact, she said, "I'm in love with him."
Read about more celeb engagement announcements on the cover of PEOPLE!