Lindsay Lohan completed her court-ordered 90-day stint in rehab on Tuesday and apparently will be headed back to her home stomping grounds in Long Island, N.Y., by this weekend. One of two things is likely to happen: She will stay clean and sober and make the rounds of talk shows to proclaim herself as such, or she will go back to her old habits, wind up in court again… and make the rounds of talk shows.

If it seems Lohan has been the queen of celebrity meltdowns for the past few years, you’re not far off. She’s now known more for her off-screen behavior than her on-screen acting. But she’s far from alone in this regard.

Here’s a look at five of the most memorable celebrity meltdowns in recent history.

AMANDA BYNES: If ever there was anyone who challenged Lohan for the child-star-turned-tabloid-train-wreck crown, it’s Bynes.

In just one year, the former Nickelodeon darling and “Hairspray” co-star has been arrested for drunken driving, criminal possession of marijuana, attempted tampering with evidence and reckless endangerment. She’s tweeted rambling messages and photos of herself in a bra while seemingly under the influence.

Last week, she was hospitalized against her will after allegedly starting a fire in the driveway of a stranger’s house and catching her pants on fire in the process. Her parents are currently seeking a conservatorship on the grounds that she is no longer able to care for herself. Sort of like…

BRITNEY SPEARS: Since she’s been under a conservatorship granted to her father in 2008, Spears has faded from the tabloid covers. But for most of the ’00s, her bizarre behavior was so unending, it would take the entire issue of GO to explore all of them in detail.

Here’s a brief synopsis: Breaks up with Justin Timberlake, marries childhood friend in Vegas, has marriage annulled 55 hours later, films relationship with dancer Kevin Federline for disastrous reality show, marries Federline and has two children, endangers baby by driving with him in her lap, poses nude for Harper’s Bazaar, divorces Federline, goes to rehab, leaves rehab after less than a day, shaves head, re-enters rehab, loses custody of kids, gives notoriously bad performance on MTV, committed to psychiatric ward, placed under conservatorship that’s still ongoing.

Oh yeah, she released some music during that time as well, just to torture the rest of us.

ALEC BALDWIN: In 2007, a voicemail tirade by Baldwin to his pre-teen daughter, in which he called her a “rude, thoughtless pig,” went viral, and the public furor resulted in him apologizing on “The View.”

Apparently, he didn’t learn his lesson, because this past June, he tweeted a homophobic rant directed at a reporter who erroneously reported that his wife was sending self-promotional tweets while they attended the funeral of “Sopranos” star James Gandolfini.

He apologized for that too.

JUSTIN BIEBER: It’s not easy being a teen pop sensation. That’s something Beebs should have known from the long line of teen star meltdowns before him, from Frankie Lymon to Demi Lovato. But once he hit 18 in 2012, Bieber threw all pretense of being an innocent cherub out the window.

Since last November, he’s been caught speeding in excess of 100 mph, had his pet monkey confiscated in Germany for failing to have health documents on the animal, wrote in the guest book of the Anne Frank museum that he hoped Anne would have been a “Belieber,” had drugs confiscated from his tour bus, and threatened a neighbor — an ex-NFL player, no less — when confronted about speeding around the neighborhood in his Ferrari.

As if all that weren’t enough, his on-again, off-again relationship with fellow teen star Selena Gomez is like the gift that keeps on giving for TMZ and Perez Hilton.

CHARLIE SHEEN: After years of building up a reputation as a Hollywood bad boy and starring in a series of movie flops, Sheen finally seemed to be back on top with a hit comedy series on TV, “Two and a Half Men.”

In 2011, he proceeded to blow it all up by going on a media rampage against the show’s producers when they refused to meet his demand for a 50 percent raise. (Never mind that three stints in rehab in one year’s time all failed.)

Being fired from the show didn’t stop the self-proclaimed warlock with tiger blood and Adonis DNA from declaring that he was “winning” and posting bizarre YouTube videos of himself. He finally shut up (mostly) after settling a lawsuit with Warner Bros., and actually managed to get another successful TV series, “Anger Management,” off the ground.

And what special guest star did Sheen have on “Anger Management” last April? None other than Lindsay Lohan.

Deputy Managing Editor Rod Harmon may be contacted at 791-6450 or at:

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Twitter: RHarmonPPH