Lauren Davis and Serena Williams proved there's nothing wrong with having a little fun after practice. In a video that's made the Internet laugh, Davis sings "the Crocs and the fanny" as Williams proudly shows off her so-called mom gear, a fanny pack and pair of Crocs.

The two put in a sweat session early in the morning in Palm Beach Gardens, Fl., where both Americans train. Williams is putting in work ahead of Montreal, where she accepted a wildcard into the Rogers Cup.

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This isn't the first viral video Davis has been a part of. During a Fed Cup tie in February, while seated alongside Serena and Venus Williams, the 24-year-old choked on her snack of wasabi peas.

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The former world No. 26 is also famous for being a stellar player. Though going through a tough spell and ranked No. 205 right now, she pushed world No. 1 Simona Halep to a 15-13 third set in the third round of the Australian Open earlier this year.