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.

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

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.

The iHeartRadio Music Festival is this weekend in Las Vegas, and concertgoers can look forward to a full lineup including Big Sean, Camila Cabello, Doja Cat, Dua Lipa, Gwen Stefani, and more, with headliners Chris Martin and The Weeknd.

Halsey, Dua Lipa & More Can't-Miss Interviews! Posted: September 24, 2024 \. E! News catches up with Halsey, Dua

The iHeartRadio Festival came back with another star-studded line-up. Featuring performances by A-list musicians like Dua Lipa, Gwen Stefani, The Weeknd, the annual music festival returned to the T-Mobile Arena in Las Vegas for the ninth year.