POPSUGAR Celebrity

Britney, Miley, and More: See All the Stars From the iHeartRadio Music Festival

Sep 23 2013 - 3:30am

The iHeartRadio Music Festival took over Las Vegas this weekend with performances from Justin Timberlake [1], Ke$ha, and Miley Cyrus [2]. The music bash got an extra dose of Hollywood star power on Friday when Kate Hudson [3] made an appearance on the stage to present another great Kate: Katy Perry [4]. Meanwhile, Kate's fiancé, Matthew Bellamy, also took to the stage to perform with his band, Muse. On Saturday, Miley made an emotional appearance when she started crying onstage [5] while performing her ballad, "Wrecking Ball." Afterwards, she changed into a barely-there costume to take over the stage again and mingle with presenters Britney Spears [6] and Khloe and Kourtney Kardashian.

Britney Spears [7] joked around backstage.

Miley Cyrus [8] performed in a tiny white ensemble.

Justin Timberlake [9] performed on Saturday.

Miley Cyrus [10] met up with Kourtney Kardashian, Khloé Kardashian, and their sisters.

Britney Spears [11] waved to the crowd.

Kate Hudson [12] introduced Katy Perry [13].

Ke$ha performed with male dancers.

Jay McGuiness of The Wanted kept things casual.

The Wanted's Max George wore a red shirt.

Katy Perry [14] played with a jump rope on stage.

Robin Thicke wore a black suit.

Miley Cyrus [15] hugged Britney Spears [16].

Adam Lambert [17] performed with fun.

Elton John made an appearance.

Justin Timberlake [18] took over the stage.

Drake kept things casual backstage.

Keith Urban [19] posed for photos with his guitar.

Diddy [20] wore a tuxedo.

Cher Lloyd struck a pose backstage.

The Kardashians introduced a musical act.

Kate Hudson [21] changed into a purple outfit.

The Kardashians worked their stuff on the red carpet.

Miley Cyrus [22] and Britney Spears [23] met up backstage.

Katy Perry [24] worked her stuff on the red carpet.

Ashley Greene [25] made an appearance.

Kelly Rowland wore sexy black boots.

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