When Adele played a London music festival, her ex-husband watched from right next to her new partner!

Hewrotehis iconic song “Uptown Girl” about her early in their relationship.

Decades later, when Christie attended his NYC show in 2024, Billyplayedthe song while she happily sang along.

Billy and Christie dressed nicely, posing with their arms around each other

MTV / Viayoutube.com

3.At the 2015 VMAs,Justin Bieberperformed “What Do You Mean?”.

At the end of the song, Justin cried.

He later explained the emotional moment onThe Tonight Show Starring Jimmy Fallon.

Justin Bieber emotionally performing on stage

A few days later, shereportedlyattended one of his shows in LA.

5.HalseyreportedlydatedThe 1975singerMatty Healyin 2015.

Then, in 2022, sheshowed upat one of the band’s shows.

Justin says he was overwhelmed by the performance and didn't expect the audience to be so supportive

Blake and his new partner (and now wife) Gwen Stefani were in the audience.

Lautner and his wife who’s also named Taylor Lautner attended several of Swift’s shows together.

In a video on herInstagramstories, they joked about having “post Taylor Swift show depression.”

Two individuals in formal attire posing together, one in a red dress, the other in a black suit with a red pocket square

8.Country singer Chase Rice and Victoria Fuller “spent a night together in Charlotte.”

In 2019, BobbyinvitedLindsay to perform at his Million Dollar Show fundraiser concert.

In 2020, Lindsay returned andplayedher new song, “I Don’t Love You.”

Band The 1975 performing on stage with a house-like set design, captioned with a fan noting cool production

Bobby was on stage during the performance.

From the crowd, someone shouted, “You messed up, Bobby!”

And Bobby replied, “Gettin' the sympathy vote out there, I appreciate that.”

Miranda changed the words from "I live in Oklahoma" to "I got the hell out of Oklahoma"

12.Lady Gaga and Taylor Kinney got engaged in 2015 but broke up in 2016.

However, they remained friends, and in 2017, Taylorattendedher show in Chicago.

However, in 1997, the band resurrected “Silver Springs” for their live albumThe Dance.

Blake Shelton in a suit and Gwen Stefani in a sparkly outfit, seated at an event

They recorded a live performance of the song with Lindsey on guitar.

Watch their iconic 1997 live performance below:

the Taylors hugging onstage

Taylor Lautner and Tay Lautner in a screenshot captioned, "when one show isn't enough, it's real"

Chase sings while Peter and Victoria slow dance

Kendall and Hailey dancing at the concert

Harry and Kendall talking in fancy outfits at the Met Gala

Lindsay with guitar singing on stage, denim jacket, joyous expression

Lindsay and Bobby hugging on stage

Lady Gaga in a gown with pants with Taylor Kinney in a tuxedo at an event

Stevie with long hair singing into a microphone on stage

Singer Stevie Nicks on stage with Lindsey Buckingham on guitar