Photos: Getty Images

By Marc Inocencio

Some of the biggest stars in music gathered under one roof for night one of the iHeartRadio Music Festival held at the MGM Grand Garden Arena in Las Vegas.

The festival kicked off on Friday with performances by Taylor Swift, Coldplay, Jason Derulo, Ariana Grande,  and Nicki Minaj — who was joined by the “Break Free” singer during “Bang Bang.”



The two-day event will resume with day time performances by Meghan Trainor, Lil Jon, and 5 Seconds of Summer at the MGM Resorts Village, before making its way back to the main stage with One Direction, Lorde, Ed Sheeran, and more on Saturday evening.

Click through the photo gallery below and let us know who you were excited to see at the 2014 iHeartRadio Music Festival:

Taylor Swift opened the show … and shook it off in a sparkly crop top

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Coldplay’s Chris Martin stopped to take a selfie

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Ariana Grande and Nicki Minaj got booty-ful

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Nicki Minaj got some action during “Anaconda”

Nicki-Dancer-Sexy

Bastille got the crowd pumped during “Pompeii”

Bastille-Pompeii

Steve Aoki caked some “lucky” fans

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 Pete Wentz “crowd surfing” to Steve Aoki

Pete-Wentz-Crowd-Surf

Jason Derulo’s “Talk Dirty”-“Wiggle”-“Trumpets” medley

Jason-Derulo

Ariana Grande did her cute “Problem” dance

Ariana-Grande-Dance

Usher brought out special guest Chris Brown

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… Then the “Good Kisser” singer set his shoes on fire and closed out the show

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It was hard to top the first night of the iHeartRadio Music Festival between Taylor Swift, Coldplay, Ariana Grande, Nicki Minaj, and Usher … but Saturday’s show was right there.

One Direction kicked it all off, followed by Ed Sheeran who was joined by Macklemore for an unforgettable collaboration of “Same Love.”

More memorable performances continued throughout the night courtesy of Lorde, Train, Meghan Trainor, Iggy Azalea, Paramore, and finally, Calvin Harris.

One Direction had us swooning with “Little Things”

LITTLE-THINGS

Harry Styles and the luckies water bottle ever

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Pucker up, Harry!

Harry-Styles

But hey, he’s not perfect … just check out his failed attempt at crowd surfing

Harry-Styles-Crowd-Surf

Macklemore and Ed Sheeran’s “Same Love” had us begging for more collaborations between the two

Ed-Macklemore

Lorde had us in a trance with her voice (and those dance moves)

Lorde-Dance

We were all about Meghan Trainor and “That Bass”

Meghan-Trainor-Snap

Iggy Azalea put in some “Work”

Iggy-Azalea-Dance

… And she gave us flashbacks to that “Booty” video with Jennifer Lopez

Iggy-Azalea-Booty-Dance

Paramore’s Hayley Williams brought up one very lucky fan to sing (and dance) on “Misery Business” … and she killed it

Paramore

 

Calvin Harris approved of audience participation during “Sweet Nothing”


Calvin-Harris

 … And those spirit fingers! Who else but the Scottish DJ can get away with that?

Calvin-Harris-Spirit-Fingers

Calvin brought out John Newman for “Blame” … and they shut it down with pyro and dance moves

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