Hey!! I just heard that Sean Kingston is going to perform at Hess's Arthur Ashe Kids' Day to help kickoff the US Open. The show is on August 25th at the USTA Billie Jean King National Tenis Center in Flushing, NY. Lil Mama, Kat Deluna and The Jonas Brothers are also scheduled to perform. The show starts at 2, but there are a bunch of other cool things going on starting at 10am, plus there will be a ton of special appearances by guests like Tony Hawk, Serena Williams, Roger Federer, Andy Roddick and James Blake. It sounds like it's going to be an awesome day.. you can get tickets (only $10-$20!) at usopen.org or through Ticketmaster (1-866-OPEN-TIX). I can't wait .. see you guys there