Who composed the first rap song?

There's no single artist credited with the creation of the first rap song. While it's uncertain when the first instance of rapping occurred, DJ Kool Herc is often considered one of the pioneers of hip-hop music, which includes rap. During the 1970s, he developed a style known as "breakbeat DJing," which involved isolating and extending the percussion breaks of funk and disco songs. These breaks provided the foundation for early hip-hop artists, including rappers, to showcase their skills and create a new form of musical expression.