This is one of the first ever Mountain Dew commercials, featuring a character named ‘Willy the Hillbilly’ in 1966. Willy the Hillbilly is the old mascot of Mountain Dew. He appeared on Mountain Dew packaging up until 1969. In the commercials, he was voiced by legendary country artist Grandpa Jones.
Vintage Mountain Dew Commercial
Video by mountaindew.com