Selena Gomez and ex Justin Bieber have reportedly reunited almost a year after calling it quits.

According to E! News, which broke the news, Bieber, 21, and Selena Gomez, 23, were spotted together Saturday at the bar of the Montage Beverly Hills Hotel, where Bieber allegedly serenaded his ex with a sweet rendition of My Girl. And, get this, they also apparently slow-danced together to Lionel Richie’s Easy.

It's not over! Justin Bieber and Selena Gomez showed off major PDA after their date night. https://t.co/eHlc7q8CAz pic.twitter.com/FTnw8vGLP8

— HollywoodLife (@HollywoodLife) November 22, 2015

Lindsey Cavanaugh of Eat Pray Photo posted videos of the encounter on her Instagram page.

She told E! News that Bieber, who often offers impromptu performances at restaurants and clubs, began by performing Sorry and another song at the piano, before he headed over to chat with Selena Gomez and her friends.

“We asked what he was doing at this bar and he said, meeting up with his ex,” Cavanaugh told E! News.

When you're having a drink at an empty hotel bar and @justinbieber appears out of nowhere and begins to sing on the piano. #LOSINGMYSHIT

A video posted by lındsey (@eatprayphoto) on Nov 20, 2015 at 7:35pm PST

Cavanaugh said watching the former couple dance was a special moment.

“They were honestly mesmerizing to watch slow dance,” Cavanaugh said. “My business partner gave him the thumbs up and he gave it back to her and laughed, then dipped Selena all the way to the floor.”

@justinbieber singing my girl to @selenagomez….is this real? Pure magic.

A video posted by lındsey (@eatprayphoto) on Nov 20, 2015 at 9:17pm PST

“Shortly after that, she sat on the table and he somehow started singing ‘My Girl.’ She was smiling and in that moment, didn’t look like Selena Gomez, rather a girl at a bar being doted on by her first love,” the photographer said.

Does anyone have a drool cloth I can borrow? @justinbieber @selenagomez

A video posted by lındsey (@eatprayphoto) on Nov 21, 2015 at 8:35am PST

After the performance, Bieber posed for a photo with her and her friends, snapped by Gomez.

“She was bubbly and sweet, shouted ‘one more!’ and then we were on our way,” Cavanaugh said.

Bieber and Gomez, who dated on and off between early 2011 and late 2014, did not comment on the encounter and reportedly went their separate ways after a lovely evening together.