Serena gets chummy with princesses at Disney World

Contrary to popular belief, Disney World is not just for children. Serena Williams, at the ripe age of 35, went on a trip to Disney. If you follow her on Snapchat, you'd have heard her singing along to the Little Mermaid soundtrack during that respective exhibit (she knew every single word).

"You can't beat Disney World," she says. "It's just the best to come. You can be a kid. You can act yourself, and you can just have an amazing time. And you can meet princesses."

The 22-time Grand Slam champion, who ended her season early due to a shoulder injury, finally had the time to visit with a few Disney royal members, like Princess Merida (from Brave).

And Cinderella.

But it's Ariel that Williams is most passionate about. The proof? After winning Roland Garros last year, she celebrated with an order of Chinese takeout and the Little Mermaid movie in bed (see: the Epix documentary Serena).

She also performed "Under the Sea" at the Annual Delta Open Mic night last year.

Who says you ever have to grow up? Not Serena.