Chrissy Teigen's Dress Trips Up Audience Member at 2015 Billboard Music Awards: Watch

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Hosts Chrissy Teigen and Ludacris speak onstage during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.

Update:  Teigen tweeted about the now-infamous trip this morning in response to apparent backlash -- it seems the struggle to remain vertical was a two-way street. See her side of the story below:

The Billboard Music Awards got off to a great start, with just one small mishap.

2015 Billboard Music Awards

A member of the audience rushing to her seat crossed paths with host Chrissy Teigen as she walked up to the stage -- and tripped on Teigen's (not particularly long) train. Of course, the cameras caught the fall, and now it's been memorialized in Vine form.

Watch the only-on-live-TV moment below: