The first-annual iHeartRadio Music Festival is officially behind us, leaving only photos and videos in its wake. For those of us who weren't lucky enough to make it out to Las Vegas this past weekend, we'll just have to live vicariously through pictures of our favorite stars -- like Rascal Flatts, Carrie Underwood and Kenny Chesney, who represented the country world during the event.

iHeartRadio's premiere fest, which is being called "the biggest live music event in radio history," was two days of music from the most popular artists in the industry, like Lady Gaga and Jay-Z, but also a tripod of country crooners. Underwood shook up the crowd with her hits and new haircut, while Rascal Flatts brought Natasha Bedingfield to the stage to perform their duet, 'Easy,' and Kenny Chesney looked large-and-in-charge on the big screen at the MGM Grand. Check out these photos of country stars performing at the first iHeartRadio Music Festival!