Rudy "Tutti" Grayzell (June 8, 1933 - November 26, 2019) was a Rockabilly musician. 
He was born Rudolph Paiz Jimenez in Saspamco, Texas, and took his stage-name from his German great-grandmother. He first formed "The Buckles", which became "Texas Kool Kats" and a popular local group. He also had a daily radio show in 1957. These groups were country-oriented, but he moved toward a more rockabilly sound with "Let's Get Wild" or "Duck Tail." In the 1950s he toured with Elvis Presley. He is an inductee of the Rockabilly Hall of Fame.