To celebrate the Oct. 16 release of her album Confident, Demi Lovato surprised her Lovatics with an acoustic performance of her newest single in New York City's Times Square. Elevated on a catwalk and accompanied by a crew of bodyguards, a trumpet player, and a crowd of adoring fans, Demi sang the album's title song — expertly showing off her impressive voice with no mic! Another thing that seriously impressed us? The sexy denim high-waisted trousers, matching crop top with chic military details, and camel-colored coat she wore to the impromptu, high-energy moment. Watch a fan's video above, then check out her best live performances on The Ellen DeGeneres Show.