Disneyland is inviting annual passholders to exclusive events to mark the 20th anniversary of the Fantasmic! show.

Disney sent email invitations starting Wednesday to passholders, who can sign up to attend one of four nights. No anniversary events are planned for regular park visitors, said Michele Himmelberg, a Disneyland Resort spokeswoman.

On May 13, Fantasmic! will turn 20 years old. Fantasmic! made its debut at Disneyland and later was added to Florida and Tokyo parks, as well.

To sign up for the anniversary events, passholders must visit a Disneyland Resort ticket booth to get vouchers. The events are set for 10 p.m. to 1 a.m. May 14, 15, 21 and 22.

On those days, annual passholders can watch Fantasmic! at 11:30 p.m. and stay after hours until 1 a.m. in Adventureland, Frontierland, and New Orleans Square.

Fantasmic! Runs along the Rivers of America and features mist screens, characters and performances on boats. Several additions have been made over the years, including a 40-foot-tall animatronic dragon that debuted in 2009.