The 2018 iHeartRadio Music Festival was filled with so many unforgettable moments. Throughout the weekend, there were many surprise collaborations, new songs debuted, touching tributes, and incredible live performances, making this year's festival as incredible as ever before.
This year's iHeartRadio Music Festival lineup included Justin Timberlake, Fleetwood Mac, Jack White, Carrie Underwood, Mariah Carey, Childish Gambino, Imagine Dragons, Jason Aldean, Sam Smith, Luke Bryan, Lynyrd Skynyrd, Panic! At The Disco, Kelly Clarkson, Shawn Mendes, Kygo, Rae Sremmurd, and Logic.
Music fans can relive some of the best moments from throughout the show, as well as see backstage interviews, during an exclusive two-night special on The CW on December 30th and 31st at 8/7c, each night.
So, don't forget to tune in, and take a look at all of the incredible performances and more that you can expect to see:
Justin Timberlake and Shawn Mendes performing "What Goes Around"
Justin surprised the audience at T-Mobile Arena with a never-done-before on-stage collaboration with none other than Shawn Mendes.
Jason Aldean & Bobby Bones remembering October 1st & honoring Route 91 Harvest Festival First Responders #VegasStrong
October 1st, 2018 marked the year anniversary since the tragic shooting at the 2017 Route 91 Harvest Festival in Las Vegas. During the iHeartRadio Music Festival, Jason and Bobby paid tribute to all of the brave first responders, and invited them on stage.
Kelly Clarkson paying tribute to Aretha Franklin with a little R.E.S.P.E.C.T.
Kelly performed some of her biggest hits and her new single "Heat," but also helped remember the iconic Aretha Franklin by performing one of her biggest hits "Respect."
Kygo bringing out Miguel to perform one of your current favorite dance anthems
The DJ brought out the soulful singer to perform "Remind Me To Forget."
Carrie Underwood showing us how to "Cry Pretty."
And that "Love Wins."
Rae Sremmurd performing the song behind one of your favorite viral challenges of all time.
The guys performed their chart-topping, viral hit "Black Beatles."
Mariah Carey giving you all the throwback vibes with all of her biggest hits.
Aside from debuting a brand new song during the festival, Mariah performed some fan favorites, including "Always Be My Baby."
Two amazing bands, originally from Las Vegas, returning to their hometowns for two incredible performances.
Panic! at the Disco and Imagine Dragons are both originally from Las Vegas, and made their hometowns proud with both sets.
Jack White performing one of the biggest festival anthems of all time, "Seven Nation Army."
Logic and Ryan Tedder performing their powerful collaboration "One Day."
Fleetwood Mac back together giving us a taste of their new tour.
Fleetwood Mac recently kicked off their new tour, and gave us all a taste of what you can expect with their set at the 2018 iHeartRadio Music Festival. See them perform "Don't Stop."
Lynyrd Skynyrd bringing people together with one of their biggest hits, "Sweet Home Alabama."
They may have headed out on their farewell tour this year, but the guys made a stop in Vegas to perform some fan favorites.
Photos: Getty Images & Todd Owyoung for iHeartRadio