Amanda Bynes isn't letting last week's DUI arrest stop her from getting her party on!

The former child star left Greystone Manor after a night of hanging with friends wearing short black jean shorts and a black razor back tank dress ...exposing her lacy bra. Um, ok.

Bynes, 26, was arrested last Friday at 3am for driving under the influence after her BMW clipped a police cruiser at the intersection of Robertson and Santa Monica Boulevard.

After checking out these photos and the below video ... she's sexy and SHE knows it!

Amanda Bynes has been released from the West Hollywood Sheriff's station after her early morning DUI arrest.

The former Nickelodeon star, who didn't say a word on her way out, is sporting a faded pink dye job, a black blazer and a pricey Chanel bag.

Bynes was pulled over just after 3am at the intersection of Robertson and Santa Monica Boulevard after her black BMW clipped the right rear panel of a police cruiser while making a right turn.

See more photos of Amanda leaving the sheriff's station in our gallery below.

Amanda Bynes has been arrested for driving under the influence, according to the Los Angeles County Sheriff's Department.

The former child star was pulled over just after 3am Friday morning at the intersection of Robertson and Santa Monica Boulevard.

The 26-year-old actress, driving a black BMW, was making a right turn and clipped the right rear panel of a police cruiser.

Bynes is still behind bars at the West Hollywood Sheriff's Station with a bail set at $5,000.

Watch Amanda leaving Greystone Manor in our video below after a night of partying at the end of March ... and she's hitting the gas pedal without looking straight ahead!

Amanda Bynes and Jessica Szohr were NOT fashion winners on the red carpet at the MTV Movie Awards. In fact their looks left us wondering ... has each of them hired Aubrey O'Day as their stylist?!

Despite what you may think, the Gossip Girl star's jumpsuit wasn't sewn together at the last minute with the curtains from her suite at the Peninsula, it's actually designer Stacey Bendet for alice + olivia. She was nominated for Best Scared-as-Sh*t performance for her role in Piranha 3D.

Meanwhile, Bynes' white fingernail polish, ill-fitting (check the chest region) Herve Leger bandage dress and over-the-top 6-inch turquoise fringe heels by Christian Louboutin left us stunned. First she quits acting via Twitter, now she turns up on a red carpet in THIS?!

Amanda Bynes knows how to keep her energy up ... double fisting her favorite caffeinated drinks from Coffee Bean and Tea Leaf in Beverly Hills. Easy girlfriend!

The 25-year-old actress, who quit Hollywood for a hot minute last year, is ready to get back to acting. Would we have missed her? The jury's out on that one.

Aside from her career, Bynes tweeted last month about her missing dog ... only to find out less than a week later, the dog was dead. Ok, the good news ... Amanda has a new puppy named Tiara.

With her recent roller coaster life, Ms. Bynes deserves all the java her heart desires. See a tight shot of the Hairspray actress sucking down her frothy treat ... after the jump.

We knew she wasn't done!

Last night actress Amanda Bynes tweeted, “i’ve unretired," just one month after announcing via Twitter that she was quitting the movie business.

Back in June Bynes wrote, “Being an actress isn’t as fun as it may seem… If I don’t love something anymore I stop doing it. I don’t love acting anymore so I’ve stopped doing it. I know 24 is a young age to retire but you heard it here first. I’ve #retired.”

Glad to have her back!

Amanda Bynes recently tweeted that she was retiring from acting, and while we're sure the 24-year-old starlet has enough money to live comfortably for the rest of her life, we were still shocked over the news. Reports have surfaced that the starlet's divalike and erratic behavior was the reason she got fired from her latest acting gig, and that her agency even planned a mini-intervention!

Amanda announced that she was no longer attached to the Farrelly brothers’ latest film, Hall Pass via Twitter, stating, “FYI I am NOT in Atlanta doing a cameo in Hall Pass like people think!! I was, but I left because of scheduling conflicts!!! It’s a huge cast and I was going to do a little part but it didn’t work out timing wise!! I have NO idea why people think I’m there filming!" Amanda's rep backed up her statement and denied that she had been fired, but a source on the set of the film has a different story.

The snitch tells The Daily Beast Amanda acted strangely during the filming, and they described her behavior as "paranoid and fearful." Owen Wilson and the Farrelly brothers wanted her to stay "if she could get a hold of herself," but nothing changed so she was given the ax. And get this -- the source added that producers kept the cameras rolling in between takes to document her odd behavior in case anyone from her camp decided to sue!

Another source said that Amanda's agents at CAA have had a "please-get-help talk" with her this year, but so far the actress has resisted. Amanda's publicist shot down the reports of a mini intervention, but after reading her bizarre tweets at 3am, we're not sure what's going on! We've met Amanda numerous times and she's always been a doll, and a producer who has worked with her on numerous occasions tells us that she's always been "a pleasure to work with" so we're not sure how we feel about all this. Is it possible that Amanda is heading to Lindsayville, or is she just over the Hollywood scene? And now that she's not acting, what's she going to do next?

Random!

Actress Amanda Bynes is an "actress" no more. The 24-year-old has been Tweeting some odd messages lately - "I like black men I'm very attracted to them just fyi" - and this weekend made the above announcement to the world.

"I don't love acting anymore so I've stopped doing it," writes Amanda. "I know 24 is a young age to retire but you heard it here first I've retired."

Bynes is best known for the TV series What I Like About You and movies like She's the Man and Hairspray. You'll be missed! Right?