Watch FMovies. No Doubt are excited to announce that they will be joining the lineup at the iHeartRadio Music Festival this year in Las Vegas. The band will take the stage to play a few songs on Friday, September 21st during the first day of this two day music festival. Only a few days before the release of their upcoming album Push And Shove on 9/25, expect to hear your favorite No Doubt classics mixed with some new songs thrown in as well. P!nk sings with Gwen in Just a Girl.