You’ve likely heard TJ Connelly on RadioBDC. But did you know you’ve also heard him at Fenway Park?

TJ is the in-house DJ for the Boston Red Sox. When you were bobbing your head to Bastille between innings while munching on a Fenway Frank at the park this summer, that was TJ’s handiwork. And when “Waiting Room” by Fugazi came over the PA system during a too-long mound visit by the away team’s pitching coach? TJ again.

So how does the Red Sox DJ prepare his playlist for the team’s first World Series appearance in six years? Listen to TJ explain his craft to Adam 12.

Can’t spare the coin to hear TJ work his magic live at Fenway Park this week? Follow him on Twitter, then use the #soxmusic hashtag to let him know what you think.