Billboard takes you inside the best moments backstage and in Vegas' T-Mobile Arena with Doja Cat, Shaboozey, Gwen Stefani, Victoria Monét & more stars.

Catch up on some of the highlights from the 2024 iHeartRadio Music Festival at T-Mobile Arena on Sept. 20 and 21, 2024, in Las Vegas, Nevada.

Check out photos of Big Sean, Camila Cabello, Doja Cat, Dua Lipa, Gwen Stefani, Halsey, Hozier, Keith Urban, and more at the 2024 iHeartRadio Music Festival hosted by Ryan Seacrest.

Dua Lipa might’ve been feeling some “Future Nostalgia” over the weekend. The pop star looked to the fashion of the early aughts to attend day one of the iHeartRadio Music Festival on Sept. 22 in Las Vegas, where she wore Tom Ford for Gucci sandals dating back to 2002 with a black-on-black ensemble from Ann Demeulemeester’s spring 2006 collection.

Doja Cat performs at the 2024 iHeartRadio Festival, plus Zendaya, Cate Blanchett and more. From Hollywood to New York and everywhere in between, see what your favorite stars are up to.

Gwen Stefani alone is a force to be reckoned with, but paired with Dua Lipa? She might just be unstoppable. Both singers performed on Friday, September 20, at the iHeartRadio Festival in Las Vegas, Nevada,