The Fonz has still got it!
Just one day into the new year, Henry Winkler showed off his dance moves while grooving to the Pussycat Dolls' song "When I Grow Up" with his grandkids in a TikTok video.
"My grandchildren" the "Happy Days" alum captioned the fun video, which showed him rubbing his derrière on a chair at one point.
The video began with the kids standing in line and spinning out of the frame as the music started. The actor appeared at the end of the line and threw his arms up while walking away from the camera. All four then hopped back into the frame and began dancing.

This is hardly the 76-year-old's first foray into TikTok, as he joined the platform in November 2020. This is, though, the first time his grandkids have appeared on his TikTok page.
Back in 2014, Henry told Parade that his grandchildren didn't know that he was an actor.
"They're too young," he said. "They know me only as Papa!"