More than a year after her album release Ultraviolence, Lana Del Rey has finally started her ‘Endless Summer’ tour, beginning in Texas. On YouTube, there are many unofficial yet brilliant songs of the singer, and on her first show of the tour, she has decided to surprise her fans and perform one of them, which is called “Serial Killer”. Del Rey recorded the song back in 2012 but never made a single out of it. As most of her tracks, this one is also a very emotional and melodic one. Watch the performance and listen to the song below.