Backstreet Boys Join Florida Georgia Line to Declare 'Backstreet's Back' at iHeartRadio Music Festival
The Backstreet Boys just announced their new Planet Hollywood residency in Las Vegas on Friday, and the next day, they were already making themselves at home in Sin City. The boy banders made a surprise appearance with Florida Georgia Line at the iHeartRadio Music Festival on Saturday night (Sept. 24) at T-Mobile Arena to perform “Everybody (Backstreet’s Back).”iHeartRadio Music Festival Day 2: How to Watch (Or Hear) Britney Spears, Ariana Grande, Sting & More Live From Vegas