Obama is marking the 46th anniversary of the Special Olympics with a dinner and celebration at the White House. He's praising athletes who have gone on to contribute to their communities in various ways after competing in the Special Olympics.
Professional athletes, A-list celebrities and singers like Stevie Wonder and Katy Perry are gathering in a specially decorated East Room for the occasion. Perry plans to perform later in the evening.
Obama says the Special Olympics has touched so many people's lives.
The Special Olympics includes more than 4 million athletes from around the world and features about 80,000 events per year.