From American Idol To Strip Club?

TMZ has learned ... the top banana at the Mantasia male strip club in NYC has been super interested Ledet ever since "A.I." fans dubbed him "Mantasia."

In case you haven't been watching, Ledet earned the moniker because his powerful voice drew comparisons to a male version of Fantasia Barrino.

But the head at the male review believes Ledet's nickname was a message from the stripper gods that the two were destined to work together ... even if Josh doesn't drop trou.