Medford youth theater company Spotlight Productions presents the third and final performance of “Mean Girls: The Musical” at the Marsha Caron Theater at Medford High School. Enter the drama-filled hallways of North Shore High, where queen bee Regina George rules the school and new girl Cady Heron tries to fit in, only to discover her own power. Packed with hilarious wit, catchy songs, and memorable characters, “Mean Girls” delivers a rollercoaster of friendship, betrayal, and redemption. Tickets are $20 for students, $25 for adults through Eventbrite.