Los Angeles

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Adam Lambert arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

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Lil Jon arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

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Linda Perry arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

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Hilary Duff arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

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Billy Ray Cyrus arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

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Austin Mahone arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

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Luke Bryan arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)

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Jared Leto arrives at the iHeartRadio Music Awards at the Shrine Auditorium on Thursday, May 1, 2014, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)