The two-hour musical will open at Horsham Town Hall on Thursday. Four performances will be staged until Saturday.

Based on the hit film, the musical follows Dewey Finn, a failed rock star who decides to earn a few extra bucks by posing as a substitute teacher at a prestigious prep school.

Oscar O'Brien and Liam Robertson are taking on the joint male lead of Dewey Finn.

Year 12 student Oscar will perform for the last time at the school production.

"It's bittersweet but I am hoping to do acting one day. I won't be missing it forever, hopefully, I would get back to doing some similar stuff," he said.

Oscar said he loved the "comedic" value of the musical.

"Every line that I get to say is a really funny one. It's just so much fun to be able to crack those up on the stage and I can't wait to hear what the reactions are like," he said.

Year 10 student Liam said he loved the rock songs in the musical. He said he would love to see people attend the performance to show their support.

"As a school show, you want as many people as possible to come and see all the hard work that we have put in," he said.

Year 12 student Josie Thomas takes the female lead of Ms Mullins.

"Ms Mullins is very uptight and she is very particular in what she wants - she wants everything to be on schedule all the time. She is very organised, which I take pride in, because I do think I can be organised - which is good thing," she said.

Josie said she loved working in theatre. She has been part of all school productions since she was in year seven.

"I really love how everyone always works together in the production together, because we all want to achieve one goal and it's a really fun experience," she said.

Director Emily Friedrichsen said the production was a result of the joint efforts from students and staff members.

"You can see the kids in the costumes, hear them singing and putting their 100 per cent energy. You just know it is going to a brilliant show and you can see everyone's hard work paying off," she said.

Ms Friedrichsen said the show was "far more" than "just putting a performance on stage".

"It's truly a team activity - we have had classes here at the school, where the year eight theatre students have built some of the sets," she said.

"The skills that the kids are learning, and the insights that they are getting when they are designing a set, is amazing - they are putting art and design together when they built and they are measuring where they have to use literacy and numeracy to work out how much paint they need.

"It's full of energy and life, and they are a beautiful bunch of kids to work with."

School of Rock takes the stage at 7.30pm on Thursday, Friday and Saturday as well as an additional performance on Saturday at 2pm; tickets are available from $20.

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