The Oakleigh-based college is one of 53 Victorian secondary colleges taking part in the eisteddfod, which promotes a drug- and alcohol-free ethos.

In their performance, the girls will deliver a grim warning on drink-driving. Their narrative dance piece, Point Oh Five, is about an avoidable tragedy: a man, who drives after drinking at a party, crashes his car and kills his girlfriend. He's left to endure the consequences of his actions.

Producer Stephanie, 16, conceived the idea and organised the 102-member cast and crew. She chose the theme because more than a quarter of Victorian road fatalities involved a driver with a blood-alcohol concentration of .05 or higher.

She wanted more young people to know about the "negative connection''.

"I don't know why it happens. People just want the easiest way to go home, but it's the worse way to go.''

Having performed in two rock eisteddfods, Stephanie looks forward to her final chance of performing in front of a packed crowd at Vodafone Arena.

"It's an amazing experience. You meet so many new people and the buzz on stage is incredible.''

Teacher Fiona McGrath praised Stephanie's leadership skills, and for coming up with a "topical concept'' and "powerful message''.

Sacred Heart Girls College competes in its heat at Vodafone Arena on August 4.