As far as Bluegrass songs are concerned, this is probably the most well known of them all. If nothing else, it has become one of Tennessee's state songs and hundreds of thousands of Tennessee Volunteers sports fans sing the song week after week. This is largely thanks to not only The Osborne Brothers, but Lynn Anderson, who did a cover, and Boots Randolph as they garnered the attention of UT band arranger, Barry MacDonald. Watch this video of The Osborne Brothers performing their hit song, "Rock