Lorde plays bridesmaid at friend's Las Vegas wedding

Pop star Lorde turned bridesmaid after a concert in Las Vegas on Tuesday (15Apr14) when one of her friends tied the knot in Sin City.

The Royals hitmaker, 17, headed to the Little White Wedding Chapel hours after a gig at the Cosmopolitan resort to be part of her pal's 'quickie' wedding ceremony.

She shared a photo of herself with the bride and another bridesmaid on Instagram.com, and it appears Lorde had no time to change after her gig - she posed wearing what has become one of her signature stage looks - a white shirt, black pants and a long, black blazer.

The chapel has a history with celebrities - Frank Sinatra wed Mia Farrow there and Bruce Willis and Demi Moore exchanged vows there, while Paul Newman, Judy Garland, Michael Jordan and Pamela Anderson also walked down the aisle at A Little White Wedding Chapel, and Britney Spears famously wed Jason Allen Alexander there in 2004, only to have the union annulled 55 hours later.