Complex sentence: As leader of The Jimmy Castor Bunch in the 1970s, and also as a solo artist, he has released several successful albums and singles, some of which have been heavily sampled in films and in hip-hop.
Split into simpler sentences: As leader of The Jimmy Castor Bunch in the 1970s, and also as a solo artist, he has released several successful albums and singles. Many of the group's tunes have been heavily sampled in films and in hip-hop.