There's plenty of joy to go around for No Doubt fans this week. Recently, it was announced that the iconic OC-bred troupe was picked to perform during the first night of the iHeart Radio festival in Las Vegas, held at the MGM Garden Arena on Sep. 21-22. It's the band's first show in a while and comes just days before their long-awaited 6th album Push and Shove, out Sep. 25. The iHeart Radio bill is filled out in similar fashion as last year's show, sporting marquee performances from Green Day, Rihanna, Aerosmith and Shakira. Tickets go on sale Saturday, July 14, at 10 a.m., with prices ranging from $71.25 to $633 and will probably sell out in the time it takes you to read this blog post.