After top-notch performances at last night s opener (NET NEWS 9/23) and then this afternoon s DAYTIME STAGE extravaganza (NET NEWS 9/24), the iHEARTRADIO MUSIC FESTIVAL stormed into its final show SATURDAY night at LAS VEGAS T-MOBILE ARENA. This was the 12th annual iteration of the event, which first launched in 2011.Fresh from her appearance earlier at the DAYTIME STAGE, AVRIL LAVIGNE, in a glittery black hoodie, was the opening act, leaning into a spirited, non-stop take on .