He released several instrumental albums featuring his amazing Harmonica skills like Harmonica And The Blues and Harmonica Beatlemania. He retired from music in 1973 but decided to join in a "Memphis In May" celebration and continued playing music until the time of his death in 2009. Bob Dylan claims Riley as one of his idols and countless of others have covered his songs including Robert Gordon (with Link Wray) and Brian Setzer.
Here's some select videos of Billy along with covers from those he influenced....
Billy Lee Riley- "Flyin' Saucers Rock 'n' Roll" and "Trouble Bound" (with Billy Burnette and Lee Rocker in the band)
Brian Setzer- "Flyin' Saucers Rock 'n' Roll"
Billy Lee Riley- "Red Hot"
Robert Gordon & Link Wray- "Red Hot"