Lindsay Lohan's 'Negative' Image Triggers Suit

Lindsay Lohan's image is once again causing problems -- but this time it has nothing to do with her late night partying.

TMZ has obtained a lawsuit, filed today in federal court, in which a photographer claims he was hired to shoot pics of Lindsay for a fashion line called 6126. The photog, Scott Nathan, claims he was promised a 1% interest in the clothing line in return for his work.

According to the suit, Nathan never got the 1% he was promised.

But that's not all -- Nathan is also suing Universal Music Group, claiming one of the images he shot for the fashion line somehow ended up as the cover for Lindsay's song, "Bossy."