Watch Lana Del Rey Perform Unreleased Track "Serial Killer"

Last night, Lana Del Rey kicked off her Endless Summer tour (featuring Courtney Love and, at later dates, Grimes) in The Woodlands, TX and she had a few surprises in store for the crowd. During her set, she performed unreleased track called 'Serial Killer' -- a song she recorded in 2012. The video, taken by a fan, captures Lana's angelic vocals over a mostly silent crowd. Her fourth album, Honeymoon, is due in August but until then catch Lana in a city near you for her tour, which ends in West Palm Beach, FL on June 16th. Watch the performance above and listen to the recorded version of 'Serial Killer' below.