After four decades, a popular Disney World tradition is coming to an end this spring.

Disney has announced that the last of its annual Grad Night celebrations at Magic Kingdom will take place April 29-30 and May 6-7. This separate ticket event is designed for high school seniors across the country to come celebrate with music, dancing, rides and long lasting memories.

Live performances have long been a focal point of the event, and participating musical guests have included the likes of Britney Spears, Miami Sound Machine, Katy Perry, Ne-Yo, New Kids on the Block, Backstreet Boys, and others. This year’s final event is set to feature live performances by Taio, Pete Wentz and 3OH!3.

The Grad Night event first started at Disney World in 1972 and has been held continuously at the Magic Kingdom ever since other than a move to Disney’s Hollywood Studios in 2009.

The musical acts scheduled to appear at the 2011 and final version of Grad Nite are Pete Wentz, Taio Cruz, and 3OH!3.

A similar event for high-school seniors called Grad Bash, will continue to be held at Universal Studios and Islands of Adventure theme parks in Orlando. This spring’s Universal Grad Bash events are scheduled for April 15 & 30 as well as May 6-7. Musical guests are Jason Derulo, B.o.B., Pitbull and DJ Khaled.