Over the weekend of Sept. 20 and 21, the iHeartRadio Music Festival returned to the T-Mobile Arena in Las Vegas with a lineup including Big Sean, Camila Cabello, Dua Lipa, Halsey, Hozier, New Kids on the Block, Shaboozey and Thomas Rhett. A special including highlights from the event will be available to stream on Hulu on Oct. 7.