The iHeartRadio Music Festival is returning to Las Vegas on September 18th and 19th for it's fifth year to once again make music history, and the star-studded lineup has been revealed! And based on this roster of stars, you will NOT want to miss out on this epic weekend.

Our fifth annual iHeartRadio Music Festival, hosted by Ryan Seacrest, will welcome the biggest artists to the MGM Grand Arena for two nights of unforgettable performances, surprise on-stage collaborations, and more. This year's lineup includes Kanye West, Sam Smith, Coldplay, Demi Lovato, David Guetta, Kenny Chesney, The Weeknd, Tove Lo, Lil Wayne, Fall Out Boy, Disclosure, Hozier, Jason Derulo, Duran Duran, Prince Royce, Diplo, Trey Songz, The Killers, Blake Shelton, Nick Jonas and more. The festival will also include a performance from this year's Macy's iHeartRadio Rising Star winner, the incredibly talented Christina Grimmie.

You can catch all the action in Las Vegas by tuning in to a live stream on Yahoo Screen (http://yahoo.com/iheart) both September 18th & 19th at 7:00 p.m. PT/10:00 p.m. ET. Relive music history again on September 29th and 30th on the CW Network as an exclusive two-night special from 8 p.m. to 10 p.m. both nights.

Beginning today (July 30th) at 1 p.m. ET/10 a.m. PT, use your MasterCard® for access to a limited number of tickets through a special pre-sale for the iHeartRadio Music Festival.  Tickets will be available only at www.iHeartRadio.com/MasterCard. Tickets go on sale to the general public on Aug. 1 at 1 p.m. ET/10 a.m. PT via http://iheartradio.com/buytickets. Tickets for the Daytime Village are also on sale and can be purchased via iHeartRadio.com/village.

The Daytime Village at the 2015 iHeartRadio Music Festival will take place during the day on September 19th and includes performances from Demi Lovato, Hozier, Tove Lo, Trey Songz, Walk The Moon, Nick Jonas, Big Sean, Lee Brice, George Ezra, Tori Kelly, Echosmith, James Bay, The Struts, Zella Day, and Shawn Mendes.