The Strokes guested Saturday Night Live yesterday to promote their upcoming fourth studio record, Angles, and performed two songs from it live. One was the album's first single "Under Cover Of Darkness" (for which there's also an official music video, which you can view here) and the second one was the atypical, mellow, "Life Is Simple In The Moonlight" a previously unheard track, and the album's closer. You can download a third track from the album, the b-side of "Under Cover Of Darkness", "You're So Right" here. Angles is out on March 22 via RCA Records. Check out the videos below.