The "iHeartRadio Music Festival" is finally back tonight on CW at 8 PM ET with performances and celebrities galore! The "iHeartRadio Music Festival" event 2014 is sure to be one of the biggest shows of the year, with huge performances from today's biggest musicians. Find out where to watch a live stream tonight and read all about the Las Vegas event right here!

According to the official TV Guide synopsis of the live show 'iHeartRadio Music Festival,' "Part 1 of 2. Highlights of the 2014 concert in Las Vegas. Performers include: Taylor Swift; Mötley Crüe; Coldplay; Nicki Minaj; Ariana Grande; Zac Brown Band; Usher; Bastille; and Steve Aoki."

Not convenient to get to a TV in time? No problem, we've got you covered with a free live stream for the full "iHeartRadio Music Festival" 2014 event - click here, here, here, or here (depending on your region, only one may be accessible) to watch the show!

The Star Tribune chooses the "iHeartRadio Music Festival" 2014 as one of its top TV picks for Monday night. Why? "The 'iHeartRadio Music Festival' certainly strives to serve all people. Highlights from its 2014 concert in Las Vegas include appearances by Taylor Swift, Motley Crue, Coldplay, Nicki Minaj and the Zac Brown Band. Let's pray that producers get even more daring next year and send out an invitation to Yanni."

According to Hollywood Life, "The 2014 iHeart Radio Music Festival was live from Las Vegas one week ago, but the A-list concert event is heading to your TV for a two-night event on Sept. 29 and Sept. 30! Nicki Minaj rocked the iHeart Radio Music Festival on Friday, Sept. 19 with two amazing performances - one with Ariana Grande and another super sexy solo round of "Anaconda" where she got close to one of her male dancers on stage! Nicki Minaj can perform "Anaconda" as many times as she wants, and we won't complain.The rap diva took the spotlight at the 2014 iHeart Radio Music Festival to perform her hit song, and of course, the booty was poppin'! Nicki also rocked with Ariana at the music fest. The duo performed a sexy rendition their smash hit "Bang Bang," and even rubbed their booties together! Nicki told the audience to "make some noise for the beautiful Ariana Grande" and Ariana called Nicki Minaj "queen" in front of the huge crowd. Ariana also performed a 15-minute long medley of songs from her new album "My Everything." To catch the entire iHeart Radio Music Festival, tune into The CW Monday, Sept. 29 and Tuesday, Sept. 30 (8/7c) for performances by Taylor Swift, One Direction, Iggy Azalea, Usher and more!"

Don't miss amazing performances from live performers including Taylor Swift, Mötley Crüe, Coldplay, Nicki Minaj, Ariana Grande, Zac Brown Band, Usher, Bastille and Steve Aoki.

We'll just have to wait and see exactly what happens at the massive concert, Vegas event and party known as "iHeartRadio Music Festival!"

Check out a trailer below:

Don't forget to catch the all-new "iHeartRadio Music Festival" 2014, hosted by Ryan Seacrest in Las Vegas, tonight at 8 PM on CW or check out our free online live streams above!

And don't forget to tune again tomorrow for even more performances, including Lorde, Paramore, One Direction, Iggy Azalea, Train, Weezer, 50 Cent, Calvin Harris, Eric Church, and Ed Sheeran.

Bonus: here's a sneak peak of Lorde's performance (airing tomorrow) below!