Simplify the following text for a Grade 8 native English-speaking person.
Original: Early in 1966 at the Cheetah Club on Broadway at 53rd Street , Linda Keith , the girlfriend of Rolling Stones guitarist Keith Richards , befriended Hendrix and recommended him to Stones ' manager Andrew Loog Oldham and later , producer Seymour Stein .
Simplified: In 1966 , Hendrix became friends with the girlfriend of Keith Richards , guitarist for The Rolling Stones , Linda Keith .