iHeartMedia has assembled a one-night only concert of alternative rock acts whose names have been found across the top lines of festival bills over the last few years: Mumford & Sons, The National, Beck, Spoon and Cage the Elephant.

The first-ever iHeartRadio ALTer EGO will be staged 1/19 at The Forum. WALK THE MOON and Dashboard Confessional are on the bill as well and more acts will be announced soon. The event will broadcast live across over 60 Alternative and Rock iHeartRadio stations.

“We’ve seen the incredible response from fans every time our alternative rock performers hit the stage at our legendary iHeartRadio Music Festival and know that listeners across the country have waited for an event like this for some time now,” said Tom Poleman, Chief Programming Officer for iHeartMedia. “It’s going to be an incredible night.”

iHeartRadio ALTer EGO is the newest in iHeartMedia's roster of major concert events, which includes the iHeartRadio Music Festival, the iHeartSummer’17 Weekend by AT&T and the nationwide iHeartRadio Jingle Ball Concert Tour.

Beginning the day after Christmas, iHeartRadio will launch a nationwide promotion to give Alt-Rock fans across the country the opportunity to win a trip to Los Angeles to attend iHeartRadio ALTer EGO. The promotion will run across more than 75 Alternative and Rock iHeartRadio stations.

“Alternative rock is experiencing an incredible renaissance,” said John Sykes, President of Entertainment Enterprises for iHeartMedia. “Young bands in their 20’s are making music with the same energy and power of the bands like U2, Depeche Mode and R.E.M., that helped to create the format.”

The presale starts Wednesday. Tickets go on sale to the general public on Friday.