The season four premiere of "Gossip Girl" airs tonight on the CW at 9:00 PM PDT -- and it's sure to be filled with all the drama and sexuality that keeps its viewers coming back for more.

Take a look back at some of the most talked-about scenes during the past three seasons of the CW hit!

Chace Crawford was arrested just after midnight Thursday for possession of marijuana in Plano, Texas.

The "Gossip Girl" heartthrob was busted in the Ringo's Rub parking lot and charged with a misdemeanor for having less than two ounces of pot, reports TMZ.

Is "Twilight" vamp Robert Pattinson sinking his teeth into "Gossip Girl" Leighton Meester? Now that's some hot gossip!

RPatzz was spotted entering Meester's New York apartment, only to leave the next morning, a source tells InTouch. "He ducked out of the building and hopped into a waiting car. He apparently spent the night with Leighton, and didn't want anyone to know!"

This season on "Gossip Girl," Chuck Bass (played by Ed Westwick) bought the Empire Hotel -- and now the NYC hotspot has become a character in the show.

Cocktail consultant Somer Perez concocted the "Gossip Girl" cocktails especially for the Empire Hotel and each drink captures the personality of the characters on the hit show.

See photos of the drinks and their creative ingredients

The drinks are being served in the hotel's Lobby Bar and are $15 each.

Robert Pattinson and Kristen Stewart got cozy in a New York City club Thursday night, a source tells Usmagazine.com.

While Kellan Lutz, Peter Facinelli, Elisabeth Reaser, Ashley Greene and Nikki Reed hung out at an Alizé-sponsored affair at The Box club, the couple snuck to SoHo House with Taylor Lautner.

"Taylor, Kristen and Rob didn't come to [The Box] because they were skittish about the crowd," a source tells "Extra."

Check out photos of stars at the NYC "New Moon" premiere

At 1:30 AM, the two ditched Lautner and met up with Joan Jett at another club, Avenue, where they were flanked by security.

"They sat very close to each other [and] looked very happy together. They chatted together the entire time," the source tells Us, adding that he drank Amstel Light, and she drank Belvedere Vodka.

See "Extra's" "New Moon" landing page!

The pair left at 3 AM "holding hands," the witness goes on.

Meanwhile, back at The Box, Reed arrived with beau Paris Latsis.

"They were whispering into each other's ear and Paris kept leaning over the balcony to check out the fans below," a witness tells "Extra."

Kellan Lutz had an easier time getting into this party. The actor "rolled up with friends and some female models and seemed to be the most energetic of the crew. He was chatting and bopping to the music with Ashley Greene, who came with girlfriends."

"Gossip Girl" couple Ed Westwick and Jessica Szhor arrived around midnight, where they hung out with Ashley Greene.

"Jessica seemed exhausted and wasn't as into the party while Ed was walking around chatting with people and drinking champagne," the witness tells "Extra."

Fergie "made a low-key entrance around midnight after the Victoria's Secret fashion show, followed by [Black Eyed Peas band-mate] Taboo, and the two went to a VIP table that was blocked off by bodyguards," adds the insider.

Fierce fashion statement!

"Gossip Girl" star Leighton Meester performed for the crowd at the American Eagle Outfitters Flagship Store opening party in Times Square on Tuesday.

See Leighton, Ashlee Simpson, Adrian Grenier and more celebs at the party

At the event, Meester told MTV News she has been collaborating with Lil Wayne for her upcoming album. "I met [Wayne] a few months ago, and he's honestly... I don't even know if he'll want people to know that he's incredibly polite and respectful."

The actress and rapper teamed up for the track "Make It Rain." Meester added, "He's so talented and very funny. And really optimistic, and super supportive of me, which I've really, really appreciated so much."