Funky Four Plus One (also known as Funky 4 + 1) was the first Hip-Hop/Rap group from The Bronx, New York, United States to receive a recording deal. They were notable for having a female MC, and were the first rap group to perform live on a national television broadcast. Jazzy Jeff from Funky Four Plus One is not the same artist as DJ Jazzy Jeff from DJ Jazzy Jeff & the Fresh Prince. When Jazzy Jeff was setting up a solo career after the (3rd) Funky 4 split up around 1983 he sued Jive Records (who had subsequently signed DJ Jazzy Jeff & the Fresh Prince) and he won a lawsuit over the rights to the name "Jazzy Jeff".
Read more about Funky Four Plus One: Members