Lindsay to Sam -- Happy Birth-diss To You!

Posted Aug 7th 2009 7:15AM by TMZ Staff

Samantha Ronson celebrated her b-day last night -- she turns 32 today -- but instead of giving her a drama-free evening, Lindsay Lohan blamed her DJ girlfriend for instigating all of their legendary catfights.

Papper: "No more fighting, right?"
Lohan: "Tell her that, not me!"