Dancing with the Stars viewers have hit out at guest judge Michael Bublé after he made an "inappropriate" comment to Charli D'Amelio during Monday night's episode.
The singer, 47, was the guest of honour on the show, with contestants performing routines set to his music.
18-year-old TikTok star Charli danced a Foxtrot with her professional partner Mark Ballas to Michael's cover of the hit song Fever.
The pair then stood before the judging panel as they awaited their results.
Michael shocked viewers while giving his feedback as he said: "I'm not telling you this, Charli, because I want you to love me like you love Len.
"But I actually wrote this down: effortless, mesmerizing, and expressively erotic."
Following his comments, viewers rushed to Twitter to slam the singer for being "inappropriate".
One person wrote: "'Expressively erotic' is a phrase I never want to hear again. Especially in regards to an 18-year-old."
Another said: "Why are they making so many inappropriate comments?"
A third viewer tweeted: "I don't think you're allowed to say "erotic" to an eighteen year old," while another added: "That's definitely on the edge of acceptability.
Other viewers disagreed and said Michael had been "absolutely amazing" during his appearance on Dancing with the Stars.
One person tweeted: "Anywaysssss michael buble slayed," while another said: "Michael Buble is the best judge can he be permanent?"
"@MichaelBuble: You did such a great job judging on #DWTS," one fan penned.
While Charli and Mark have consistently been at the top of the leader board, the social media personality snagged her first perfect score from the judges during last night's episode.
Charli massively impressed the judges, with Derek Hough saying he would have awarded them a 12 if such a thing was possible.
"This is no exaggeration. I'm not even kidding when I say that was the best quality foxtrot I literally have ever seen on this show.
"The rise and fall, the texture, the resistance in the body, the musicality, the constant choreography, the look—every single thing about it. I would give that a 12 if I could," he said.
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