Prince Photog Tells Online Retailer ... Using Sexy Pic Might Cost Ya

7/20/2016 6:33 AM PDT

Prince: Photog Tells Online Retailer ... Using My Pic Might Cost Ya

A famous pic of Prince with a come-hither stare was plastered on sweatshirts and t-shirts and sold without the photog's permission ... according to a new lawsuit.

Famed photographer Deborah Feingold is suing online retail store Rebdolls for using the pic, which she says is from a shoot she did with Prince in 1980. She says it started selling the Prince items between 2012 and 2014 ... with the caption "Girl Bye." 

It appears Rebdolls caught wind of the suit -- we did a search and the merch is already off their site.

BTW ... the Prince shot on the gear isn't the same as the one included in the lawsuit, but we're told it IS from Deborah's photo shoot. Deborah's lawyer says it was a clerical error.