Sam Ronson -- Paris Hilton Is a Disgrace to DJs

Paris Hilton is a money-grubbing record-spinning FRAUD, whose recent attempt to enter the DJ business is an insult to the real professionals -- this according to actual DJ Sam Ronson.

Sam Ronson was out in L.A. Thursday, when she unloaded on Paris launching a DJ career, telling TMZ, "That sh*t with [Paris]. It's like, c'mon man. She's tried everything now. Just put some quality behind the sh*t that you do. Put some effort into it."

Ronson's advice, if Paris really wants to do it right, she should "be an actual DJ." Ronson adds, "If you're just like, oh I want to figure out how I can make more money this week, it insults the people that work really hard at it."

Ronson says, "It's like me calling myself a doctor from reading WebMD twice."

And Ronson's not the only real DJ pissed at Paris Hilton -- who's teaming up with AfroJack on a new album -- DJ Jane Bang already released an anti-Paris diss track.

And when Deadmau5 caught wind of Paris' DJ debut, he tweeted, "It's over."