The crowd at Las Vegas’ Allegiant Stadium was in for a surprise Saturday night (Oct. 28). They paid to see Ed Sheeran‘s Mathematics Tour and got a bonus: an unannounced appearance by The Killers‘ Brandon Flowers.
Sheeran and Flowers performed a Killers classic, “Mr. Brightside,” which was a top 10 hit on the Billboard Hot 100 in 2005.
Introducing The Killers frontman to the stage, Sheeran joked, “We’re gonna sing the song that is essentially like my country’s national anthem.”
Sheeran, who was dressed in a Chucky costume for Halloween weekend, played guitar on “Mr. Brightside” and harmonized on the chorus while Flowers led a massive crowd sing-along.
The two artists then sang together on Sheeran’s “Castle on the Hill,” with Flowers joining on the chorus and getting a turn on the second verse and the bridge. The concert was the last North American date on Sheeran’s Mathematics Tour, which picks back up in Japan on in January.
“Mr. Brightside,” a song that’s stood the test of time on the U.K. charts, appeared on the Las Vegas band’s debut album, Hot Fuss, which peaked at No. 7 on the Billboard 200 and featured additional singles “Somebody Told Me,” “All These Things That I’ve Done” and “Smile Like You Mean It.”
Watch Sheeran and Flowers’ performance of “Mr. Brightside” and “Castle on the Hill” below. Sheeran also popped in at Vegas nightclub performance by The Chainsmokers this weekend, treating the everyone to some unanticipated “Dancing Queen” karaoke. See a clip from The Chainsmokers’ Instagram.