Australian Open 2013: Kids Tennis Day with Nickelodean and tennis stars

A special show was presented at the Rod Laver Arena in conjunction with Kids Tennis Day today. The annual kids event featured Novak Djokovic, Victoria Azarenka, Roger Federer, Serena Williams, Jo-Wilfried Tsonga and Ana Ivanovic.

The event also featured singer Guy Sebastian. Nickelodeon stars SpongeBob SquarePants, Patrick Starfish, Dora the Explorer and Diego joined the entertainment line-up as well. 

Federer's and Lleyton Hewitt's children were spotted at the event.

(Images via Australian Open website, Sina Tennis, Tennisfoum)