Floyd Mayweather Jr. is off the hook for allegedly threatening two security guards in his gated Las Vegas community -- a judge just found him not guilty .

Floyd was accused of going ballistic on the guards after they left parking tickets on a couple of cars near his home

Michael Lohan got a special delivery while he was rotting away in a Tampa jail yesterday -- dude got served with new legal papers from his ex-wife Dina ... who's demanding $11k in unpaid child support.

We thought the kids were all in their 30s by now ... apparently not.

Rapper Big Sean has dodged a serious bullet -- TMZ has learned he will not be charged with sexually assaulting an underage girl back in August ... but he's not entirely in the clear.

23-year-old Sean -- who got a 2011 MTV VMA nomination for best new artist -- was

Wearing a

Full on waterworks for Dr. Conrad Murray ... breaking down in tears during today's testimony -- you buying it? More importantly .. will the jury?

Plus, Michael Lohan -- can he read? A Florida judge asked the question ... but should judges engage in that kind of showboating? Also, is

10/26/2011 11:50 AM PDT BY TMZ STAFF

Lindsay Lohan didn't wuss out for her Playboy shoot -- TMZ has learned, the actress will BARE ALL in her upcoming spread ... i.e. the holy trifecta ... or as one source close to Playboy put it, "boobs, ass, and vag."

As we previously reported, Lindsay recently locked down a