Nickelodeon's The Big Help campaign is teaming up with First Lady Michelle Obama's Let's Move! initiative to host Let's Move! London today.
More than 1,000 American military children and American and British students are expected to attend the event, which will include sports stations, musical performances and celebrity appearances. Celebrities signed on to appear include David Beckham, Emily Hughes, Sarah Hughes, Shawn Johnson and Dikembe Mutombo.
This event is part of the First Lady's work to turn the inspiration of the Olympic and Paralympic Games into action by getting more kids healthy and active.