Catholic school girls from Sacre Coeur in Glen Iris dress as Ronald McDonald for muck-up day prank

A muck-up day prank involving 100 Catholic school girls dressed as Ronald McDonald has gone viral, amassing more than 40 million views worldwide. See the video.

Sacre Coeur students’ viral Macca's muck up day prank.

A muck-up prank involving Catholic school girls dressing as Ronald McDonald and taking over their local Macca’s outlet on muck-up day has gone viral.

Four clips of the stunt involving girls from Sacre Coeur in Glen Iris have received more than 40 million views worldwide, attracting thousands of comments and more than 200,000 likes.

The event involved up to 100 girls dressed in identical outfits swarming the fast food restaurant as staff watched on in amusement as they sung and danced in celebration of the end of their school days.

Some of the girls even went behind the counter and posed for photos. In the clips some staff can be seen chatting amicably to the students, while others look overwhelmed as they realise they have no hope of serving so many customers at once. While some people commenting online questioned the impact on staff, the girls posting the clips insisted that “they loved us”.

In fact, the girls were considered so well mannered that the store manager has even invited them back to help out at McHappy Day in November.

Sacre Coeur students' Ronald McDonald muck-up day prank has gone viral.

The students dressed as Ronald McDonald took over their local McDonald's.

Dozens of Sacre Coeur students dressed as Ronald McDonald inside the store.

One McDonald’s worker said: “As an employee of McDonald’s, I guarantee they talked about y’all for the next like hour afterward, and you likely made their day”.

The girls were praised online for being respectful and not destructive.

The first clip attracted 37 million views, and the others around 6 million.

Despite a move from most schools to turn muck-up days into more respectful celebration days, students still managed to have fun and run amok.

At Melbourne Girls’ College, students turned the staff room into a disco and partied.

At Epping Secondary College, teachers were doused in shaving cream and the campus was decorated with toilet paper streamers.

Oakleigh Grammar had a dunk tank and water fights with teachers, and students from Sacred Heart College in Geelong had a colour run and dress-ups where they parodied boys from nearby St Joseph’s College.

At Templestowe College, kids filled hallways with balloons, put a “For Sale” sign on the school gate and filled the garden with inflatables.

At Star of the Sea College, girls took over a tram carriage, filling it with crazy string to the bemusement of passengers.

At Camberwell High, male and female students swapped uniforms, dressed up and had water fights.

Originally published as Catholic school girls from Sacre Coeur in Glen Iris dress as Ronald McDonald for muck-up day prank