Happy Birthday Hollywood Studios

Walt Disney World 18th Birthday Button
1989

A star was born back in 1989, Disney - MGM Studios.  For it's 18th birthday, Walt Disney World highlighted the opening of their newest park on their annual cast member birthday button.  Starting with their 9th anniversary, the buttons began to feature an image of significance from that year, often a ride or attraction.
May 1, 2014 marked the 25th anniversary of the now, Disney's Hollywood Studios.  The logo for the celebration shows a similar Mickey Mouse in his director's outfit.
Happy Birthday!