Jennifer Lopez might be considered a star because of her TV career, but she's not a big enough name in music to land the Super Bowl Halftime Show in Miami ... at least according to Uncle Luke.
The former 2 Live Crew frontman is standing by his criticism of Jay-Z and the NFL for choosing J Lo and Shakira as headliners for SB54 ... because he feels Pitbull and Flo Rida are at a higher level.