Earlier this week Kings Of Leon dropped their 5th Studio Album and with that comes a mixed bag of reviews for the album and the band hitting the promo trail. Last night the boys paid Saturday Night Live a visit and played their first single from Come Around Sundown "Radioactive" and album track "Pyro". We all know Kings can play live and fill arenas, but not only that they can break UK records and since Monday the band has sold 183,000 copies of the new album, making it the biggest first week album sales of the year so far. Can anything stop them now? Watch "Radioactive" above and "Pyro" after the jump. Thanks to The Audio Perv for the videos.