Complex sentence: He is a long time collaborator with Busta Rhymes, who has said in the past that they were cousins, however, on an MTV special featuring artist's mothers, Busta's mom said that they were only really close friends who grew up together.
Split into simpler sentences: He is a long time collaborator with Busta Rhymes, who has said in the past that they were cousins. However, on an MTV special featuring artist's mothers, Busta's mom said that they were only really close friends who grew up together.