Celebrity advocates for gay rights were recognized.
The LGBT organization honored the shoe designer with the National Equality Award.
The E! reality star sizzled in a white dress by Rick Owens.
John Cena will serve as host.
The 17-year-old performed at the iHeartRadio Music Awards on Sunday night.
Musicians complemented their outfits Sunday in Los Angeles.
Ryan Seacrest will host the ceremony after red-carpet arrivals wrap up.