The names Keith Urban and John Travolta don't exactly seem like they should go together. But this week at the Montage Hotel in Beverly Hills, the country crooner joined forces with the famous actor to put on an incredible cover of the Beatles' 'Yesterday.'

The only thing better than knowing that the former 'Grease' star and the current 'American Idol' judge can sing together is the fact that somebody caught the seemingly impromptu performance on video.

According to TMZ, both Urban and Travolta were at the high-end hotel for a Qantas Airlines event. At some point during the event, the 'You Gonna Fly' hitmaker grabbed his guitar and Travolta grabbed a mic. Suddenly, another Beatles tribute was born.

While Urban quietly strummed the melody to the classic 1960s tune on his guitar, Travolta belted out the emotional lyrics. Not one to avoid a good harmony, the country singer chimed in to sing the chorus, and the crowd cheered in excitement.

It's nice for Urban to take a time out from his 'American Idol' judging gig to put on a little performance. Although the country singer star enjoys helping people live out their dreams on the reality television show, he's not about to hang up his guitar.

This year, Urban will release a new album, which he insists will sound unlike anything he’s every done before. He’ll also kick off a new tour soon with openers Little Big Town and Dustin Lynch. Sounds like the next several months are going to be very busy for everyone’s favorite New Zealand-born country star.

More From B105