Lindsay Lohan -- I Won't Live in L.A. ... But I Love Visiting!

Lindsay Lohan vowed to never again live in L.A. ... and days later she's here.

Lindsay crossed the pond and skipped NYC -- where she plans on living with her sister Ali -- and blew into L.A. Tuesday night.

We thought she might be here to perform some community service to fulfill her probation, but we've learned that's not the case. So the only real thing left is to party.