Las Vegas Sun - Photograph : 2015 Billboard Music Awards

October 23, 2018

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Chrissy Teigen and Ludacris host the 2015 Billboard Music Awards on Sunday, May 17, 2015, at MGM Grand Garden Arena.

Chris Pizzello / Invision / AP

Chrissy Teigen and Ludacris host the 2015 Billboard Music Awards on Sunday, May 17, 2015, at MGM Grand Garden Arena.