Samantha Ronson is so over Lindsay Lohan’s dramatics that she “manned up” this weekend and locked her out of her house and barred her from entering a gig she was playing this weekend as well.

Sam didn’t just lock her out of the house…she had locksmiths come and change the locks. That’s hardcore.  And how funny is it that LiLo can’t even slither her way into a JCPenney party these days.

According to OK! Magazine the party was for Charlotte Ronson’s new fashion line for JcPenney. The whole Ronson family was there and Sam specifically told the organizers not to let LiLo through the doors. Sources say Lindsay even knew she wasn’t supposed to show up, but of course she did anyway…because in her mind she is still a celebrity with pull.

Things got so heated that Lindsay tried sneaking in through the D Squared designers room but when she made it to the door of Sam’s gig she had to be “restrained from coming in by five security guards.”

Here are some pictures from the party that Lindsay failed to get admission to. What do you think..is that a look of relief and happiness on Sam’s face?