Fans were encouraged to don 1950s style duds to the park on Friday, to mark the theme park's grand opening on July 17, 1955.
PHOTOS: Disneyland on opening day, July 17, 1955
There will be 1950s backdrops stationed throughout the park for photo ops, and a dance party is planned so fans can show off their best moves from that era.
Also, everyone who comes to the park Friday will be treated to a free birthday cupcake.
For more information on the Disneyland Resort Diamond Celebration, visit www.disneyland.disney.go.com/60-years-diamond-anniversary.