And not just any baseball bat. An electric violin hand-crafted from a regulation Louisville Slugger, the Derek Jeter model of course (aural delight after the jump).
After meeting Robert Tanenbaum, one of the Nationals' owners, at an orchestra concert, Donnellan said he'd like to play the game-opening music on his new instrument. Tanenbaum witnessed a YouTube of the awesome solo showing and was sold on the idea.
The YouTube video, which can be watched below, has already amassed over 150,000 views since he posted it on July 1. Not only has Donnellan's performance been a big hit on the Internet, but it was also a rousing success at the Nationals game, as both fans and players cheered for the one-of-a-kind anthem rendition.
If you're in the Atlanta area and want to catch it live, he's going to be playing again at the Diamondbacks vs. Braves game on August 17.