Happy 88th Birthday Mickey Mouse!

Happy Birthday to the world's most famous mouse!

On November 18th, 1928, Walt Disney's first sound-synchronized animated cartoon, "Steamboat Willie" starring Mickey Mouse, premiered in New York.

Parades and parties were planned at all the Disney parks around the world for his big day.

Mickey Mouse stopped by Good Morning America to celebrate his special day.

Throughout the day, Disney's Twitter was filled with Happy Birthday fun.

Join the celebration on Twitter using the hashtag #HappyBirthdayMickey