Identify this genre: My Uncle Used to Love Me, but She Died (Roger Miller)
This is a rockabilly (hillbilly rock) song. Rockabilly was an early form of rock & roll music that combined bluegrass country with classic R&B. You can tell by the honky-tonk piano with the heavy drumbeat. You can think of it as early-style, high energy country rock.
Compare these rockabilly hits:
Roger Miller (1936-1992) is known for singing novelty songs, like this one, in a country style.