They started rocking around the clock at Bloomfield Hills Andover High School on Wednesday.

And they don’t plan on stopping until Saturday.

The high school radio station, WBFH-FM 88.1, is holding its 17th annual “Spring Celebration” to benefit the March of Dimes.

Starting Wednesday morning, student dee jays began 75 hours of broadcasting to raise money to fight child birth defects.

Station manager Pete Bowers said 22 students from Andover and Lahser high schools are filling three shifts to take pledges—and requests from listeners.

Justin Strote, a 17-year-old senior who participated in the marathon last year, said as an incentive, the kids are willing to do any stunt for a pledge—as long as it 's legal and safe.

Last year a “dee jay shaved his head for a hundred bucks,” he said.

“This year, Gordon Smith and I will eat 1 1/2 sticks of butter for 35 bucks a piece. It’s a little embarrassing, but it’s for a good cause.”

Josh Reinicke, a 17-year-old junior, said although they plan to have fun, he takes the campaign for the March of Dimes very seriously.

“My brother has Down’s syndrome,” he said. “So, I know what it is like to live with someone with a birth defect, and I hope we can raise people’s consciousness about the issue and encourage them to support the campaign.”

Susan Hall, a spokeswoman for the southeastern Michigan March of Dimes, said the local organization raises about $2 million a year for research, community service and education. She said the students have raised more thant $25,000 since their first marathon in 1976.

“We’re really happy they supported us,” she said. “These kids give a lot of time and energy to educate themselves and their listeners on the importance of the March of Dimes.”