Justin Bieber Unleashes New #DrunkJustin Persona on the World (Video)

The private jets took off from Vegas and landed in NYC for the Met Gala on Monday night, May 4.

How to upstage the Met Ball? Miley Cyrus and Diddy tucked in to a booth at Richie Akiva's Up&Down after party.

Rihanna hosted Keri Russell and Elizabeth Banks at her Up&Down bash.

Jessica Alba never goes to clubs and rarely to parties like this.

Usher being Usher at the D’USSE and Armand de Brignac hosted mega bash.

Vanessa Hudgens and Selena Gomez

This was Bieber making his way in to the spot on 14th st.

Dwayne Wade and Gabrielle Union were already ensconced.

Tonya Lewis Lee and Spike Lee

Lady Gaga kisses Alexander Wang on the way in to the actual Gala hours earlier.

Amal Clooney (far left, with George, and the future Manganiellos) might have felt the pressure at the "Fashion  Oscars" after poor reviews at the Golden Globes.

Robert Pattinson with Kate Hudson. That neckwear is called a "cross tie".

Barry Diller peeks out from behind Diane von Furstenberg.

Beyonce, still on top.

Designer Jeremy Scott turns Madonna in to the Pope.

Lee Daniels revealed that Naomi Campbell is coming back to "Empire".

While Rihanna's "Yellow Brick Road" dress inspired memes.

These two garnered few headlines.

Hailee Steinfeld and "Pitch Perfect 2" director Elizabeth Banks hit one of the top after parties, Michael Kors' bash.

Joel McHale rolled in all smiles.

Royal photographer Mario Testino with Sienna Miller and a guest at the Kors party. 

Kate Mara gave an over the shoulder on the way in to the Mark.

Director Baz Luhrmann hung with host Kors and model Karolina Kurkova.

Miguel performed at the party, which was oddly sponsered by Itunes. Apple never sponsors events - they don't have to. 

Vergara began her day on Howard Stern giving a much-discussed interview about her frozen embryos.

Solange Knowles found her quiet place after last year's intra-family elevator fight.

Wendy Deng Murdoch and Ivanka Trump flank "The Great Gatsby" director.

Tori Spelling, Ian Ziering, and Gabrielle Carteris got West Beverly High back together for a WE tv event to raise awareness for Canine Companions for Independence. It will air on David Tutera's "CELEBrations."

Meanwhile, Kiernan Shipka, Dakota Fanning and Victoria Justice headlined NYLON's Young Hollywood Party with BCBGeneration at Hyde Sunset on Thursday.

Olivia Culpo hung with Justice inside, as "Awkward's" Jillian Rose Reed and Mollee Gray caught up at the annual big spring bash.

Ray and Shannon Allen, Associate Publisher Sarah Mirmelli, and Violet Camacho made the cut for Haute Living's Haute 100 Dinner in Miami on Wednesday night.

In Miami, you don't get a permit for your event unless there is a yellow Lambo parked out front.

Chuck Lorre Productions President Bob Broder handed the gavel to WME partner Richard Weitz, incoming Board President of the Friends of the Saban Community Clinic at Jar on Monday night.

Power lawyers Tom Hoberman, Blair Berk, and fresh off the fight, Showtime boss David and Andrea Nevins at the Saban dinner.

Earlier on Monday, Roland Martin, Johnny Gill, Cedric the Entertainer and Anthony Anderson made an impromptu boy band at George Lopez's Golf fundraiser for his foundation. Sabra Salsa sponsored.

On Monday night, Scooter Braun, the artifacts of "Back to the Future II," and Dan Liguori headlined a party launching Zodiac vodka's new expansion in to California.

The arrivals at the Zodiac event downtown, an infrequently used space on Seaton St.