It's almost like she is mocking someone who she thinks is conceited (another performer perhaps), so they gave him a nickname to make fun of him. Maybe he's one of those guys who likes to take on a wacky persona for the stage (someone like David Bowie or Alice Cooper) and she is mocking the pretension of his performance by calling him Bebe Le Strange. That said, she can't help feeling attracted to this person because of the fact that he's so weird and "out there," which is a thing that seems to work on some women.
It could also just be a song about a fan letter they received.
It's almost like she is mocking someone who she thinks is conceited (another performer perhaps), so they gave him a nickname to make fun of him. Maybe he's one of those guys who likes to take on a wacky persona for the stage (someone like David Bowie or Alice Cooper) and she is mocking the pretension of his performance by calling him Bebe Le Strange. That said, she can't help feeling attracted to this person because of the fact that he's so weird and "out there," which is a thing that seems to work on some women.
It could also just be a song about a fan letter they received.