Addison Rae is a first-time nominee. Addison Rae, one of the nominees for Best New Artist at Sunday night’s Grammys, showed off her bum on the award show’s red carpet Sunday night in a custom Alaïa gown. The white gown is long in the front with a plunge neckline, but in the back, it’s a short mini. On the red carpet, Rae playfully bent over to reveal her white underwear. This is Rae’s first Grammys as a nominee. She released her self-titled debut album “Addison” in June, which features the hit “