Billboard Awards to be an emotional night with performances

The Billboard Music Awards will feature a mix of emotional and explosive performances.
Madonna will pay tribute to Prince, who died last month; Kesha will now sing live Sunday after her performance was initially canceled by her former mentor; and Celine Dion — who recently lost her husband and brother — will perform Queen’s “The Show Must Go On.”
The show, airing live on ABC from the T-Mobile Arena in Las Vegas, will open with a 7-minute medley from Britney Spears,