Bow Wow has to cough up nearly $80,000 to a French porn star .... for allegedly jacking footage of her dancing and splashing it all over one of his videos without her permission ... TMZ has learned.
Adult film star Celine Tran -- known as "Katsuni" -- sued Bow Wow back in July 2012, claiming he stole clips of her pole dancing in a music video for a French band called Electronic Conspiracy and then used a ton of the footage in his music video "Drank in My Cup" ... sans permission.
Bow Wow didn't even respond to the lawsuit, so a federal judge ordered him to pony up $79,346.07 (damages + attorneys' fees) ... and stop with the footage STAT.
Sad part is ... for $80k ... he never got to see her naked.
Check out the videos. They're fun.