The Billboard Music Awards went down in Las Vegas on Sunday night, and in addition to some of our favorite celebrities making appearances (hello, Britney Spears [1]!), some of Hollywood's cutest duos also used it as a fun night out. Ciara, who hosted the show with Ludacris, hit the red carpet with fiancé Russell Wilson [2], while Meghan Trainor brought her handsome brother, Ryan, as her date. Ashton Kutcher [3] also shared a fun moment with pal Kate Beckinsale [4], and Kesha posed with Ben Folds before heading inside. For more Billboard madness, check out all the red carpet looks [5].
Pictured: Ashton Kutcher [6] and Mila Kunis [7]
Pictured: Celine Dion and René-Charles Angélil
Pictured: Blake Shelton and Gwen Stefani [8]
Pictured: Tove Lo and Demi Lovato [9]
Pictured: The Weeknd and Wiz Khalifa
Pictured: Kelly Rowland [10] and Laverne Cox
Pictured: Wilmer Valderrama [11] and Demi Lovato [12]
Pictured: The Weeknd and Meghan Trainor
Pictured: Ludacris and Eudoxie Mbouguiengue
Pictured: Wiz Khalifa and Ashton Kutcher [13]
Pictured: Ludacris and Ciara
Pictured: Thomas Rhett and Lauren Gregory
Pictured: Mila Kunis [14] and Jessica Alba [15]
Pictured: Celine Dion and Ludacris
Pictured: Kelly Rowland [16] and Ciara
Pictured: Ashton Kutcher [17] and Kate Beckinsale [18]
Pictured: Meghan Trainor and Ryan Trainor
Pictured: Kesha and Ben Folds
Pictured: Ciara and Russell Wilson