The work was revealed in an Instagram post by artist Jon Mesa, who had drawn Davidson's latest tattoo - a pensive-looking owl, perched on a tree branch and wearing a mortar board.
But when the producers wanted to choose the second song of the medley, Grande pulled out. Since Ariana is rarely seen without her ponytail, it didn't take long for her fans to take notice of the natural look and respond with supportive compliments.
And it appears Ariana Grande wasn't too happy about it.
"I've kept my mouth shut but now you're lying about me", Grande wrote.
Ariana previously said she'd chosen not to attend as she felt her "creativity and self expression" were being "stifled" by the night's organisers, as they put plans together for her performance.More news: MLB owners, players are talking rule changes to invigorate baseball
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"Will you sing with me again sometime?" she asked Willow on the red carpet.
'I offered 3 different songs, ' Grande continued. It's about art and honesty. Not politics. Not doing favors or playing games.
"Congrats to all the nominees", she added.
One person pointed out that Grande was likely not referring to Cardi B, but she was upset because her late boyfriend Mac Miller, who was nominated in the same category, did not win. Amazing. Then when a fan asked if she still has her curls, she replied: "they gotta grow first! that blonde a year ago. tarnished".
FILE - In this July 13, 2013, file photo, Rapper Mac Miller performs on his Space Migration Tour at Festival Pier in Philadelphia.