THE MOST HATED CELEBRITY IN HOLLYWOOD TITLE GOES TO ...: The "Star" tabloid has compiled its list of the 20 Most Hated Celebrities in Hollywood, and apparently, GWYNETH PALTROW and 18 other people are somehow more hated than CHRIS BROWN, who only placed 20th.

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There's no word on how the ranks were determined. The full list hits newsstand later today, but a sneak peak showed JOHN MAYER at #4, KATHERINE HEIGL #5, and LINDSAY LOHAN ranked 16th. TAYLOR SWIFT, JUSTIN BIEBER, KIM KARDASHIAN, ANNE HATHAWAY and LEANN RIMES also made the list but how high or low they rated was not divulged.

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Speaking of Rimes ... she and her husband EDDIE CIBRIAN have been pitching a sitcom based on their lives to all the TV networks. A source tells Us Weekly, "They would play versions of themselves," and the characters would include “a crazy ex-wife.” So far no takers.

LOHAN LUNACY - PARTIES AFTER LETTERMAN APPEARANCE: After going on "Letterman" and calling rehab "a blessing", LINDSAY LOHAN quickly changed from the demure flower print dress she wore on the show into a black leather mini and wasted no time hitting the New York club scene.

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After an evening of partying, LoHo was photographed leaving the 1 Oak nightclub trying to hide her face with her purse. (PHOTO) (PHOTO)

RIHANNA SHOWS US HER PICS: RIHANNA hit up Twitter last night with this picture of her leaning up against Chris as they're riding in a car ...


Pretty much all the gossip sites out there have questioned their coupledom this week -- especially after RiRi herself hinted at turmoil between the two when at a concert in Los Angeles on Tuesday she asked the audience, “How many of you are in love? How many of you hate love? How many of you f***ing don’t understand it? I’m in that group. The confused group.”

For what it's worth, Us magazine says they're still together, but "fighting." And then there's the photo above ... so, who knows?

COULD BE TRUE, COULD BE CRAP - MILEY CYRUS WEDDING ON HOLD?!: MILEY CYRUS and LIAM HEMSWORTH'S  wedding is on hold. So claims Life & Style magazine. According to their source, "They were supposed to get married in June. But there have been so many problems with them, they thought it was best to work out their issues before making such a big commitment."

The insider adds that the two are still a couple, but "their families are both concerned. They don’t want to see Miley and Liam get married and then get divorced. They’re very young to be getting married."

JT SINGS FOR THE POTUS: JUSTIN TIMBERLAKE performed for PRESIDENT OBAMA and FIRST LADY MICHELLE OBAMA at a White House event on Tuesday night at an event to celebrate Memphis soul music. JT belted out the Otis Redding classic "(Sittin' on) the Dock of the Bay" and got everyone to join in at the end, including the president. Or at least he mouthed the words. He wasn't mic'd up so you can't actually hear him. The full concert airs next Tuesday on PBS.

Question: what happened to all those dire predictions the White House was making about government cuts and the 'sequester'? Remember how criminals were going run free, and the TSA would suffer? But there's money for a Justin Timberlake concert at the White House?

SEACREST SWATTED: The swats keeping coming. "American Idol" host RYAN SEACREST is the latest victim of the 911 prank. According to TMZ, a jokester claimed that shots were fired inside the American Idol host's L.A. home today (Wednesday) by "mobster looking guys in suits with rifles." A slew of cops showed up at the house, but, of course, it turned out to be bogus.

Coincidentally -- or because of it -- only hours before, RUSSELL BRAND called in to Ryan's L.A. radio show to talk about his own swatting incident, which happened Monday.