Earlier this month, Boston Sports Club teamed up with the Patriots’ resident party monster Rob Gronkowski (and co.) to launch the Gronk Fitness Program. Inspired by his NFL training regimen, the program gets gymgoers in tight-end shape—or just tightened up—through sports interval training workouts, all designed by Gronk himself. In honor of the new program, now available at the BSC Wellington Circle in Medford, we asked Gronk (along with his brothers and Gronk Sr., who all know a thing or two about cutting loose) to spin us a playlist of their go-to workout jams.