Lindsay Lohan & Lily Allen's Wild Night

Cameras catch Lindsay Lohan and pal Lily Allen leaving Shamrock Social Club, an L.A. tattoo parlor on the famous Sunset Strip, WELL BEFORE DAWN on Thursday.

LiLo sure loves her tats .. she 's got a couple of them already and her girlfriend Samantha Ronson is covered with them.

We don't know yet if LiLo got another tattoo, and if she did, what it shows.. but don't worry, if she did, we'll find out!

We do know that Lily got "Shhh..." inked on her index finger.

Sure that's interesting.. LiLo and Lily out on the town, getting tats.. but here's where the story takes an even stranger twist.

Earlier in the evening, Lily was a no-show on Dr. Drew's Loveline radio show . At first Drew seemed really ticked about it. Drew took to his Twitter page calling it "not cool".. but later said he heard she had food poisoning, and said he hoped she felt better.

But X17 online.com reports that Lindsay and Lily started their night off partying in a private bungalow at the Chateau Marmont, but left around 2am in a black Rolls Royce Phantom, which took them to the tattoo parlor.

Seems Lily recovered.

Lindsay may be just kicking off a weekend of partying. After all, its Oscar weekend in L.A. and her girlfriend Sam will deejaying Friday in Washington DC, Saturday in Toronto, then Sunday, Sam's back in L.A.

Get home soon, Sam.

When the cat's away..

Btw, Check out Lily's new tattoo here!