One Direction attend the 2014 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 20, 2014 in Las Vegas, Nevada.

iHeartRadio Music Festival in Las Vegas - 20.09.2014 (x)

billboard: Things are getting silly backstage with @zaynmalik and @louist91 of #OneDirection! #1Direction #1D #Directioner #iHeartRadio

johnjayvanes: Backstage w Harry! @onedirection #1D #iHeartRadio

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iHeartRadio 2014

5 Seconds of Summer performing at theĀ iHeart Radio Festival

benbooker37: @Luke5SOS stole my phone and did a selfie. What ever keeps him happy! :)

HW