Grande chose to channel the classic musical number from "The First Wives Club", wearing bridal white alongside her two backup singers to resemble the film's stars Bette Midler, Goldie Hawn and Dianne Keaton.
Grande appeared to have tears in her eyes elsewhere during the performance of what may well be her most personal song to date.
There's no denying that Grande has had a rough year, but she seems to be handling it all with grace.
"Oh, my god!" Grande shouted as she recovered from the fall, then nearly seamlessly continued performing. Holding hands with my mama.
Host DeGeneres joked about Grande leaving, prompting her to return in a amusing confused moment. It's one thing to sing the words, "I'm so fucking grateful for my ex", and it's another to really look like you mean them.
Trump blasts reporter as ‘rude’; CNN calls attacks on press ‘un-American’
Acosta, 47, regularly grills Sanders at press conferences where she defends Trump's most controversial policies. In a later tweet , Mr Acosta said Ms Sanders' assertion he placed his hands on the woman was "a lie" .
As for the performance, it was definitely live as she almost took a faceplant trying to step down from a chair on the wedding reception-inspired set.
"Ariana knew Pete was going to address the split on SNL, but did not know what he would say".
"Thank U, Next", has, of course, become an instant viral meme and breakup anthem, further highlighted in the performance by Ari's costume homage to the movie The First Wives Club. Oh my bad, I thought we were supposed to exit at the top.
"We were supposed to come down?"