The 64-year-old actor also joined Instagram on Tuesday.
The 64-year-old actor was sending out some serious Saturday Night Fever vibes on stage during 50 Cent's performance of his 2005 song, "Just a Lil Bit." Travolta's moves included some serious head nodding, side stepping, and shimmying.
The Gotti star can also be seen tipping an imaginary hat and doing a dance move that looked a lot like a confused shrug.
This isn't the first time Travolta has been spotted dancing the night away with a fellow celebrity. Following the 2017 GRAMMYs, the Grease star was seen on the dance floor with none other than Lady Gaga.
It's been a busy week for the actor. Prior to dancing the night away in Cannes, Travolta spent the day promoting his upcoming film, Gotti, with his family by his side, and later decided to join the world of social media.
On Tuesday, he posted his very first Instagram video that featured his wife, Kelly Preston, and a cute dog filter. Travolta credited his Instagram arrival to his 18-year-old daughter, Ella, and seems to be getting the hang of it. Since creating the account, he already has five posts, including a throwback to the 1997 Cannes Film Festival.
To check out more of Travolta's dance moves, check out the video below:
John Travolta and Kelly Preston Face Off While He's Behind Bars in 'Gotti' Biopic Clip (Exclusive)