Cynthia Littleton Business Editor Medium Rare, the live events and management company behind such franchises as Travis Kelce’s Kelce Jam and Shaquille O’Neal’s Fun House carnival-style festival, has received an investment from Palm Tree Crew that values the company at $50 million. Financial details about the size of the investment were not disclosed. Palm Tree Crew is an event, artists management and holding company that invests in firms that complement its core activities, which include the Palm Tree Music Festival.