Taylor Swift, Pink and Nina Dobrev Pictures at 2012 iHeartRadio Music Festival

Las Vegas got a megadose of star power during Saturday night's iHeartRadio Music Festival. Rihanna, No Doubt and Lil Wayne kept the crowd on their feet during the first night of the iHeartRadio Music Festival, and then on Saturday night, Taylor Swift, Pink, Enrique Iglesias and more were given the same task. The evening got started with a high-energy set from Pink, who performed acrobatic stunts and belted out hits like "Raise Your Glass," "Just Like a Pill," and her latest single, "Blow Me (One Last Kiss)."

Taylor Swift brought an element of sparkle to the show, stepping out in a sequin top and later changing into an equally glittery dress. She sang her chart-topping hit "We Are Never Ever Getting Back Together" and broke out her guitar for fan favorites "You Belong With Me" and "Mean." There were also a ton of surprises sprinkled throughout the four-hour block of music. The Vampire Diaries stars Nina Dobrev introduced Taylor while Prince joined Mary J. Blige for a duet. Country star Brad Paisley, rapper Pitbull, and Aerosmith also joined in the fun and put on wild shows for the crowd.