Mariah Carey shows off her sexy body curves in a dress at iHeartRadio Music Festival in Las Vegas - By Petpo Kayla-ism & Luusama

Mariah Carey shows off her famous curves in a sequinned mini dress as she performs at iHeartRadio Music Festival in Las Vegas - By Petpo Kayla-ism & Luusama

She's the pop diva who resumed her Las Vegas residency at Caesars Palace's Colosseum in August with The Butterfly Returns.

Mariah Carey looked sensational as she performed at the the iHeartRadio Music Festival in the T-Mobile Arena in Las Vegas on Friday. 

The singer, 48, dazzled in a blue sequinned mini dress which fit snugly on her hourglass frame as she sang her heart out onstage.