Justin Timberlake, J. Cole and Miguel are slated to perform at the 2013 iHeartRadio Music Festival in Las Vegas on September 20th and 21st. The annual festival will celebrate its third year at the MGM Grand Arena with a massive lineup of names; this year’s bill also includes Bruno Mars, Katy Perry, Elton John and a few surprise guests. The nighttime festival will be accompanied by a schedule of afternoon events dubbed the iHeartRadio Music Festival Village – a two-stage venue that will feature performances from popular up and coming artists on Saturday, September 21st. Tickets for the festival will be available for purchase on July 20th. Check out the festival lineup announcement from Ryan Seacrest below. Grab your tickets for the iHeartRadio Music Festival this Saturday.