Playing a heavy hybrid of hard rock and country, Tim Montana occupies a specific niche: he's a burly mountain man rocker, an image he cultivates in his music and on a variety of social media side hustles. His fame in the early 2020s hawking grilled meats and their accouterments was the end result of a long, strange trip that began with the rocker receiving an unexpected break from David Letterman in 2008 and continued through a partnership with ZZ Top's Billy F. Gibbons that produced "This Beard Came Here to Party," a song employed as a rallying anthem by the Boston Red Sox wh...