2012 iHeartRadio Music Festival | Entertainment News, Photos, and Videos

Taylor Swift hits the stage for her performance at the 2012 iHeartRadio Music Festival held at the MGM Grand Garden Arena on Saturday (September 22) in Las Vegas.

The 22-year-old singer sported two sparkly outfits on stage that evening, during which she performed her hit new single “We Are Never Ever Getting Back Together.”

PHOTOS: Check out the latest pics of Taylor Swift

Earlier in the evening, Taylor wore a red lace dress for some backstage interviews.

FYI: Taylor is wearing a Rachel Gilbert top.

30+ pictures inside of Taylor Swift performing at the iHeartRadio Music Festival… More Here! »

Pink flies with the help of a harness during her performance at the 2012 iHeartRadio Music Festival held at the MGM Grand Garden Arena on Saturday (September 22) in Las Vegas.

The 33-year-old singer join her pal Gwen Stefani and her group No Doubt the evening before to duet on the song “Just A Girl”.

Make sure to pick up Pink‘s new album The Truth About Love, which is expected to debut at number one on the Billboard Hot 100 this week!

30+ pictures inside of Pink performing at the iHeartRadio Music Festival… More Here! »

Taylor Swift is red hot in French Connection backstage at the 2012 iHeartRadio Music Festival held at the MGM Grand Garden Arena on Saturday (September 22) in Las Vegas.

“Chillin before I Heart Radio Festival tonight,” the 22-year-old singer tweeted before the big show with a pic of her cat Meredith laying on the couch.

For the next four Mondays, Taylor will be premiering clips of songs from her upcoming album Red on Good Morning America. Make sure to tune in for the first listen and then buy each song on iTunes at midnight that evening.

15+ pictures inside of Taylor Swift at the iHeartRadio Music Festival… More Here! »

Demi Lovato, in TopShop, snaps a pic with Ryan Seacrest backstage before an interview at the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on Friday (September 21) in Las Vegas.

The 20-year-old X Factor judge, alongside Mario Lopez, introduced Green Day to the stage.

PHOTOS: Check out the latest pics of Demi Lovato

“Oh haaaaayyyyyy Vegas!!!” Demi tweeted earlier in the day.

Demi recently appeared on Katie Couric‘s new talk show Katie, where she talked about her time in a treatment facility.

The episode will air Monday, September 24th. Check your local listings for time and channel!

Rihanna hits the stage in Jeremy Scott as she closes out Day 1 of the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on Friday night (September 21) in Las Vegas.

The 24-year-old singer performed some of her most recent hits including “We Found Love,” “Birthday Cake,” and “Where Have You Been,” as well as a few of her older songs including “Only Girl in the World,” “Don’t Stop The Music,” and “Umbrella”.

“Tonight wuz #majah thank you #iHEARTradio” Ri tweeted after her performance along with a pic.

50+ pictures inside of Rihanna performing at the iHeartRadio Music Festival…
More Here! »

Usher and Korean rapper Psy flash a smile backstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on Friday (September 21) in Las Vegas.

Usher, 33, tweeted earlier, “LIVE TONIGHT! Watch me live at the #iHeartRadio Music Festival. Details @http://iheartradio.com/vegas and then the after party @1OAKLV!”

PHOTOS: Check out the latest pics of Usher

Check out the video below of Psy teaching Usher his “Gangnam Style” dance moves and talking about invading America.

15+ pictures inside of Usher and Psy at the iHeartRadio Music Festival…More Here! »

Gwen Stefani flaunts her abs in a chic Peter Pilotto top while performing onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on Friday (September 21) in Las Vegas.

The 42-year-old No Doubt singer was joined on stage by Pink, where they performed a song together.

PHOTOS: Check out the latest pics of Gwen Stefani

Pink tweeted, “I just got off stage from the raddest surprise performance with No Doubt. [Gwen] really is that cool. #imjustagirl.”

40+ pictures of Gwen Stefani and Pink performing together at the iHeartRadio Festival…More Here! »