Last year, Roger Federer presented the world with his personally designed new, all black Wilson frame, the Pro Staff RF 97 Autograph. Fans then had to wait until this month's Hopman Cup to see the 35-year-old compete with the new stick.

On Saturday, he whipped out yet another new Wilson, a black, extremely oversized frame for the Australian Open's Tennis Hot Shots Kids Day.

Advertising

Federer was joined by plenty of other star power, including Novak Djokovic and his new friends.

Advertising

Daria Gavrilova and Milos Raonic also took part in the fun, performing in front of more than 17,000 fans.

Federer will trade in his gag racquet for the real thing when play starts Monday. The Swiss will face Jurgen Melzer in the first round.