The rep says 50 Cent was taken to New York Hospital Queens where he was treated for "minor neck and back injuries" and is now "doing fine."
Bruce Miller, who was driving the car, was also injured and has been released from the hospital.
Photos of the 36-year-old on a stretcher are posted on his website www.ThisIs50.com. The Grammy winner, whose real name is Curtis Jackson, appears in a neck brace in two photos.
No other details were provided.