Curley After School Program (CASP) students feature in a new television public service announcement starring our very own CASP hip hop dance instructor, Cedric Crowe!

“The T’s got a brand-new theme song, and it’s called “The Safety Bounce.”

The CASP students who appeared alongside Mr. Crowe include 7th grader Sheena Pierre-Louis, and 5th graders Carlos Gonzalez, Amine Cherfils, Virginia Lathrop, Empress Stewart, Deroledy Tejeda, Lilian Alvord-Stearns and Yuliana Hernandez.

The song and accompanying music video (above), a hip-hop-inspired rumination on all things transit safety, aired on  Wednesday on YouTube and will be at four of the T’s major stations.

T officials hope the three-minute ditty will teach children headed back to school the perfunctory elements of safe, courteous train travel – mind the gap, don’t blab on a cellphone, hold onto the escalator rails – but also hope that the song’s catchy refrain (“Just bounce, when you ride it out!”) will be a hit among adults, too.

The video, filmed inside T stations in May, will likely garner giggles with shots of the plush polyester Charlie mascot, along with T riders and staff, performing a medley of time-tested hip-hop moves from the ’80s, ’90s, and today.

“The Safety Bounce” video was taped inside MBTA stations. The video was produced and financed by Titan, the transit advertising firm that contracts with the T.

MBTA’s general manager, Beverly A. Scott, said she hopes riders get a kick out of it – and pay attention.

“When it comes to safety, sometimes you can say something until you’re blue in the face,” Scott said. With this video, she said, “I felt like we had a little bit of MTV over here.”

The video will play on digital advertising screens at Harvard, Haymarket, Park, and North stations, and will be accompanied by a poster campaign inside trains and buses telling riders to do as the song says: “Let’s all stay alert and let safety flow.”

Additionally, the T will distribute kits of MBTA safety-themed coloring books, whistles, and bouncing balls – Get it? Bounce! – at Boston public schools.

Renita Martin, a lyricist and composer who wrote the words and music for the song, said the song’s refrain is meant to evoke the gentle rhythm of a train “just sort of taking you on the waves, and you’re enjoying the ride in the process.”

Martin said she also hopes it inspires commuters to take on a more laid-back attitude about the minor hiccups that arise.

“Metaphorically, it’s like, ‘relax,’ ” said Martin, 44, who lives in Roxbury. “We all get frustrated, whatever transportation method we use.”

CASP dance teacher Cedric Crowe rapped the lyrics. He is confident the song’s smooth flow will get commuters grooving.

“I’m assuming it’s going to be, after a while, one of those songs that you’re humming, and you’re like, ‘Ugh, I can’t get it out of my head!’ ” Crowe said.