Live Nation is once again celebrating National Concert Day on May 1st and that’s good news for music fans. In conjunction with the event, the concert promoter will launch their “Kickoff to Summer Ticket Promotion," offering more than one million $20 concert tickets to some of today’s hottest summer tours. Just a few of the performers taking part in the special promotion include OneRepublic, Kings of Leon, Muse, Third Eye Blind, John Mayer, Earth, Wind & Fire and CHIC ft. Nile Rodgers, Chris Brown, Enrique Iglesias and Pitbull, Foreigner and Cheap Trick, Nickelback, Korn with Stone Sour, Queen with Adam Lambert, Train and more. The specially priced tickets will be available starting May 2nd at 8am local time, and continues for one week through Tuesday, May 9th.