"Rock and roll (often written as rock & roll or rock 'n' roll) is a genre of popular music that originated and evolved in the United States during the late 1940s and early 1950s, from African American musical styles such as gospel, jump blues, jazz, boogie woogie, and rhythm and blues, along with country music."
I've never really put much stock in that sort of conventional wisdom that overstates the black roots of rock'n'roll, and only mentions country as an afterthought.
The mainstream pop rock'n'roll that became a teen-centric phenomenon in the 50s evolved most directly from rockabilly, which was really just up-tempo country with electric guitars.
Teardrop Valley-The Lonesome Drifter
https://www.youtube.com/watch?v=-EzLcBWbqaY
The Race is On-George Jones
https://www.youtube.com/watch?v=5IKBAyxULAo
Mama Tried-Ben Haggard (covers his dad’s song)
https://www.youtube.com/watch?v=-T5OnZL2Jxg
High on a Hilltop-Merle Haggard
https://www.youtube.com/watch?v=mJ8mCO4407I
Let’s Rock Tonight-Jimmy Grubbs
https://www.youtube.com/watch?v=1Tv1sdzygdk
High Class Feeling-Lee Finn
https://www.youtube.com/watch?v=QNOzXTfDGp8
Rock It-George “Thumper” Jones
https://www.youtube.com/watch?v=Ac1VRXyfTDo
One Hand Loose-Charlie Feathers
https://www.youtube.com/watch?v=wLhGR13MRDY