Lil Jon Takes Over 'TMZ on TV'

7/27/2010 1:30 PM PDT
For the first time ever -- Lil Jon took over Harvey's spot in the newsroom for tonight's episode of TMZ on TV ... and it's awesome.

In fact, dude even brought his own sippy cup ... though Jon's was a little more pimped out than Harv's chalice. Check out the preview ...

It all goes down tonight on TMZ on TV -- Check local listings.