The Medford Middle School Drama Club presents the first of two performances of “Grease,” this one featuring the Greased Lightning Cast. This abridged school-edition version of the hit musical retains the fun-loving spirit and immortal songs that make “Grease” a favorite among rock ‘n’ roll fans of all ages. Tickets are $10 for adults, $8 for seniors and $6 for students through the event ticketing page. The second performance, featuring the We Go Together Cast, will be at 7 p.m. on Saturday, June 1.