The Disney channel has been gearing up for the premiere of its 100th movie, Adventures in Babysitting, all summer long, starting with this truly epic Memorial Day weekend throwback lineup.

MIAMI, FL - JUNE 17: Actress Sofia Carson is seen on the set of 'Despierta America' to promote the film 'Adventures In Babysitting' at Univision Studios on June 17, 2016 in Miami, Florida. (Photo by Gustavo Caballero/Getty Images)

Beginning on May 27 and ending with a bang at last night’s premiere of the 1987 film’s remake, the channel’s former stars were out in full force to give a nod to the network that started it all. Check out who was on hand below!

1. The Lawrence Brothers: Joey, Matthew and Andrew, who famously starred in Disney’s Horse Sense and Jumping Ship, were all three in attendance, posing for a car selfie together that Joey titled “Good times.”

2. Monique Coleman and Olesya Rulin: “Reppin old school Disney channel with @olesyarulin,” wrote Monique Coleman of this pic of herself with her former High School Musical buddy.

3. Christy Carlson Romano: Christy Carlson Romano (better known as Ren from Even Stevens), who announced her pregnancy and baby’s gender just two days ago, wrote, “En route to baby’s first red carpet. How appropriate that it’s for @disneychannel.” We’re going to concur 1,000%, Ren!

4. Sabrina Bryan: The former Cheetah Girl hung backstage with High School Musical choreographer Chucky Klapow.

5. Kyle Massey, Jason Dolley and Jason Earles: Kyle (you may recall him as Cory from Cory in the House) got the chance to goof around with Hannah Montana’s Jason Earles.

He also posted this reunion vid of himself with his character’s BFF, Newt, saying, “For everyone that didn’t know, Corey and Newt are back in the house!”

6. Adam Wiley: Disney took it way back with the appearance of Adam Wiley, one of the channel’s very first celebs, who was made famous for his role in 1997’s Under Wraps.

7. Keith Coogan: Last but certainly not least was Keith Coogan, who played pesky neighbor Brad Anderson in the original Babysitting film. Here, he reveals his favorite part of making the original movie.

Congratulations, Disney! Here’s to 100 more!

What was your favorite Disney channel original? Tell us over @BritandCo!

(Photos via Gustavo Caballero/Getty, @moniquecoleman and @disneychannel)