The two plan to celebrate their one-year anniversary with a party in Las Vegas on April 30. A source just slipped me a copy of their invitation, which is gold and features white script lettering.
Festivities kick off at 11p.m. and go "until Dawn" at the Palms' Moon nightclub, according to the invite.
Dress code? "Hot!"
No word on whether Ms. Mariah will be performing on the big night.