[Watch] The Vaccines - "If You Wanna" Live on Letterman

UK boys The Vaccines made their network television debut on Monday evening too, which must be a crazy feeling for them. With a few singles under their belts, and a string of gigs too these boys aren't stopping their rise any time soon. They performed "If You Wanna" on David Letterman's show, and you can watch at the top courtesy of the Audio Perv.

Their debut album, What Did You Expect From The Vaccines? is out now, and you can pre-order over here.