Socialite turned designer Nicky Hilton was joined by wannabe couple Paris Hilton and Benji Madden and her own longtime boyfriend David Katzenberg for the launch of her Nicholai Fall 2008 collection show during L.A. Fashion Week in Culver City, CA on Tuesday night.

The 27-year-old hotel heiress arrived hand-in-hand with her boyfriend, Good Charlotte guitarist Benji Madden, who celebrated his 29th birthday today.