Michelle Obama, Serena Williams, Novak Djokovic and Rafael Nadal at the 2013 Arthur Ashe Kids Day in New York.
2013 Arthur Ashe Kids DayFirst lady Michelle Obama addresses the crowd gathered for the Arthur Ashe Kids Day at the USTA Billie Jean King National Tennis Center on August 24, 2013 in New York City. (Photo: Getty Images)2013 Arthur Ashe Kids DayNovak Djokovic participates in skills challenge during the 2013 Arthur Ashe Kids Day at USTA Billie Jean King National Tennis Center on August 24, 2013 in the Queens borough of New York City. (Photo: Getty Images)2013 Arthur Ashe Kids DayRafael Nadal participates in skills challenge during the 2013 Arthur Ashe Kids Day at USTA Billie Jean King National Tennis Center on August 24, 2013 in the Queens borough of New York City. (Photo: Getty Images)2013 Arthur Ashe Kids DaySebastian Furrer and Alexander Bjorklund of Cazzette attend the 2013 Arthur Ashe Kids Day at USTA Billie Jean King National Tennis Center on August 24, 2013 in the Queens borough of New York City. (Photo: Getty Images)2013 Arthur Ashe Kids’ DayU.S. first lady Michelle Obama speaks with Jeannie Ashe (C), wife of Arthur Ashe and their daughter Camera Ashe (L) during Arthur Ashe Kids’ Day at the USTA Billie Jean King National Tennis Center in New York August 24, 2013. (Photo: Reuters)2013 Arthur Ashe Kids DaySerena Williams attends the 2013 Arthur Ashe Kids Day at USTA Billie Jean King National Tennis Center on August 24, 2013 in the Queens borough of New York City. (Photo: Getty Images)2013 Arthur Ashe Kids DayAustin Mahone performs at the 2013 Arthur Ashe Kids Day at USTA Billie Jean King National Tennis Center on August 24, 2013 in the Queens borough of New York City. (Photo: Getty Images)2013 Arthur Ashe Kids DayFirst Lady of the United States of America Michelle Obama attends the 2013 Arthur Ashe Kids Day at USTA Billie Jean King National Tennis Center on August 24, 2013 in the Queens borough of New York City. (Photo: Getty Images)2013 Arthur Ashe Kids DayAriana Grande performs at the 2013 Arthur Ashe Kids Day at USTA Billie Jean King National Tennis Center on August 24, 2013 in the Queens borough of New York City. (Photo: Getty Images)2013 Arthur Ashe Kids DayAriana Grande performs at the 2013 Arthur Ashe Kids Day at USTA Billie Jean King National Tennis Center on August 24, 2013 in the Queens borough of New York City. (Photo: Getty Images)