Kat Von D just went nuclear on the producers of her reality show "L.A. Ink" -- threatening a legal war over several scenes that feature Kat trash-talking her on-again boyfriend Nikki Sixx.
Sources close to the production tell us ... Kat went ballistic on producers earlier this week when she viewed screeners for upcoming episodes of "Ink" which air on TLC starting Wednesday night ... which contained several scenes featuring Kat going off about her then ex-boyfriend Nikki Sixx.
Here's the problem -- the footage was shot a while ago, while Kat was dating Jesse James ... and back then, she still harbored some ill-feelings toward Nikki. READ THE REST HERE ON TMZ
Here's the problem -- the footage was shot a while ago, while Kat was dating Jesse James ... and back then, she still harbored some ill-feelings toward Nikki. READ THE REST HERE ON TMZ
