2015 iHeartRadio Music Awards: 5 Things You Need to Know Before Tonight's Big Show

1/5 Rihanna's Big Debut: Fans have been 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 at the awards.

2/5 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!

3/5 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.

4/5 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.

5/5 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.