By Dailymail.com Reporter
Published: 23:10 BST, 1 June 2019 | Updated: 23:10 BST, 1 June 2019
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Demi Lovato was overcome with emotion at Christina Aquilera's concert in Las Vegas on Friday night.
The pop star, 26, considers herself a 'fangirl' of Aguilera, 38, and shared an Instagram story where she openly wept during one of the hitmaker's songs at the opening night of her residency at Planet Hollywood.
'The f**king queen herself. A PERFECT, perfect show.. couldn’t believe it was opening night because it was so smooth, flawless and sounded incredible,' captioned the former Disney star.
Pop icon love: Demi Lovato was overcome with emotion at Christina Aquilera's concert in Las Vegas on Friday night
The video showed the Skyscraper songstress singing to Aquilera's hits in a car with a group of friends on the way to the concert.
At the venue, Lovato and friends are blown away by Aguilera's performance.
And at one point,