There’s our party girl! Glazed eyes and bra just hangin’ outta her purse.

Lindsay Lohan looked very, um, happy as we spotted her very late last night.  LiLo and her main squeeze Samantha Ronson roamed the streets of Los Angeles til about 4am last night until they hopped in LiLo’s new Maserati Quattroporte.  I guess Lindsay’s Red Bull habit is really keeping her up late!