Demi Lovato Sings 'Let It Go' in Show-Stopping Live Performance

Does it get any better than Demi Lovato singing Frozen's "Let It Go?"
The 22-year-old belted out the now classic Disney tune at the annual Royal Variety Performance in London last month, though the footage only became available earlier this week.
Technically, the song isn't a cover, as Demi actually recorded an official version of the song for the film's soundtrack.
But perhaps even more notable than Demi's predictably stellar vocals in the performance, is her show-stopping Ashi mullet-hem dress, which was adorned with feathers and a sparkly belt.

... Looking good Demi!
ET was actually with Frozen stars Kristen Bell, Josh Gad and Idina Menzel last October, before the animated film became such a massive hit.
Check out the video below to hear how the movie made Kristen's dream come true.