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Taylor Swift, Justin Timberlake, Rihanna, 2013 American Music Awards

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If you like what you hear on the radio, chances are you're going to love what you watch on TV tonight!

The 2015 iHeartRadio Music Awards are officially here and the biggest names in music are coming together to celebrate the songs you couldn't stop requesting, blasting and singing along to all year long.

Held at the Shrine Auditorium in Los Angeles, the star-studded event will feature performances by Kelly Clarkson, Sam Smith, Iggy Azalea, Jason Derulo and many others.

If you're not exactly sure what to expect, here are five reasons why this awards show may end up being music to your ears. 

Rihanna, iHeartRadio Music Awards, Rich Celebs

Kevin Mazur/Getty Images for Clear Channel

1) Rihanna's Big Debut: We know fans are waiting a long time for that new album. But while the anticipation continues, admirers of RiRi will get a taste of new music when she performs "Bitch Better Have My Money" for the first time live tonight. We're also secretly hoping she sports another fab outfit like last year's gothic look.

2) Justin Timberlake's Honor: Before Jessica Biel gives birth, the former 'N Sync member will be honored with the 2015 iHeartRadio Innovator Award. The soon-to-be dad will be recognized for his ability to transcend all artistic boundaries including music collaborations, comedy and an ambitious sold-out tour. Well deserved, J.T.

3) Blame it on the Music: To keep things rocking, iHeartRadio has chosen Jamie Foxx to serve at this year's host. Plus, the hilarious actor is already proving to go above the call of duty by also performing during the three-hour show. Talk about being the hostess with the mostess. 

4) Post-Wedding Performance: Just one week after saying "I Do" to Brittany Kerr in Mexico, Jason Aldean will return to Los Angeles where he will perform one of his biggest hits for the audience. Country fans will be delighted to know Florida Georgia Line is set to perform during the show as well.

5) Prepare for Madonna: Is there ever a performance where Madonna doesn't get people talking? While we're certainly hoping she doesn't take another timber anytime soon, we have a feeling the "Living for Love" crooner will deliver a set to remember. Crazy dance moves? Likely. Memorable fashion look? Safe bet. Must see TV? Guess you will watch to find out!

The 2015 iHeartRadio Music Awards air Sunday night at 8 p.m. only on NBC.