National Lampoon's Christmas Vacation cast reunites, plus more great celebrity photos

By Kristin Vartan
December 03, 2019 at 08:45 PM EST

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Adam Lambert

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Adam Lambert looked festive in his green suit during the L.A. stop of his Velvet tour.

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Simon Cowell

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It looks like Simon Cowell made a friend during his family vacation in Barbados.

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Lizzo

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Lizzo brought down the house during her performance on Saturday Night Live.

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Eddie Murphy

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Eddie Murphy dropped by The Tonight Show ahead of his SNL hosting gig.

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Ana Gasteyer

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Eliminated Masked Singer contestant Ana Gasteyer — who had recently been revealed as the Christmas Tree —performed "Sugar & Booze" off of her new Christmas album during an appearance on Late Night With Seth Meyers.

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Karamo Brown, Miss America 2020 Camille Schrier, Lauren Ash and Kelly Rowland

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Karamo Brown, Miss America 2020 Camille Schrier, Lauren Ash, and Kelly Rowland flashed their best pageant smiles at a press conference in Connecticut following the big show.

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Tariq "Black Thought" Trotter, Jimmy Fallon, and the Sesame Street gang

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In honor of the 50th anniversary of Sesame Street, Tariq "Black Thought" Trotter and Jimmy Fallon performed a rap number with Elmo, Big Bird, and more.

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1917 stars

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George MacKay, Dean-Charles Chapman, and Andrew Scott hit the Hollywood premiere of 1917.

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Shawn Mendes

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Shawn Mendes rocked Monterrey, Mexico.

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Melina Matsoukas and Reese Witherspoon

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Two queens: Queen & Slim director Melina Matsoukas posed with Reese Witherspoon at a special screening of the movie in West Hollywood.

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Michael B. Jordan and Jamie Foxx

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Michael B. Jordan and Jamie Foxx kept it casual for a SiriusXM town hall for their upcoming film, Just Mercy.

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Mariah Carey

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Mariah Carey lit up the Empire State Building in celebration of the 25th anniversary of "All I Want for Christmas Is You."

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Helen Hunt and Paul Reiser

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Twenty years after their original show ended, Mad About You's Helen Hunt and Paul Reiser are together again! The actors posed at the premiere screening of their sitcom's reboot in New York City.

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John Mulaney and the Sack Lunch Bunch

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John Mulaney spread some Christmas cheer with the Sack Lunch Bunch at a screening for their Netflix variety special in New York.

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Saoirse Ronan and Timothée Chalamet

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Little Women's Saoirse Ronan and Timothée Chalamet lit up London with their smiles.

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The Witcher cast

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Anya Chalotra, Henry Cavill, and Freya Allan made quite a hat the world premiere of Netflix's The Witcher in London.

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Like a Boss stars

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Tiffany Haddish, Salma Hayek, and Rose Byrne looked like they meant business while promoting their upcoming film Like a Boss in the Big Apple.

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Taylor Swift

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Thirty looks purrfect on Taylor Swift! The pop star received a giant cat-themed birthday cake onstage during iHeartRadio's Z100 Jingle Ball concert in NYC.

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Fleabag stars

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Andrew Scott, Phoebe Waller-Bridge, and Ben Aldridge volunteered during Match Fund day at the Choose Love shop, which sells products for refugees, in London.

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Tyrese Gibson and Idris Elba

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Tyrese Gibson and Idris Elba were snapped hanging courtside as the Los Angeles Lakers took on the Atlanta Hawks at State Farm Arena.

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Mariah Carey

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This was all we wanted for Christmas! Mariah Carey performed onstage during her All I Want for Christmas Is You tour at Madison Square Garden. Shortly after, her tune hit No. 1 on Billboard's Hot 100 for the first time after 25 years.

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Sean Combs and Post Malone

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Sean Combs shared a toast with friends, including Post Malone, at his 50th birthday bash in Los Angeles.

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National Lampoon's Christmas Vacation cast

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The Griswolds are together again! National Lampoon's Christmas Vacation stars Johnny Galecki, Juliette Lewis, Diane Ladd, Chevy Chase, and Beverly D'Angelo reunited for the Academy of Motion Picture Arts and Sciences' 30th anniversary screening of their classic holiday movie in Beverly Hills.

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Taylor Swift and Billie Eilish 

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During Taylor Swift's Billboard Women in Music 2019 Woman of the Decade speech, she named Billie Eilish as one of her favorite new female artists to watch.

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Cats cast 

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Laurie Davidson, Rebel Wilson, Jennifer Hudson, Sir Ian McKellen, Francesca Hayward, Jason Derulo ,and Robbie Fairchild were making memories while promoting Cats in London.

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Tom Hiddleston 

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Marvel Cinematic Universe stars like Tom Hiddleston assembled to honor Stan Lee's legacy during a taping for the ABC prime-time special Celebrating Marvel's Stan Lee.

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Idina Menzel

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Idina Menzel got everyone into the spirit during her Holiday Playlist Performance held at the Apple Store in New York City. The singer has been promoting her new album, Christmas: A Season of Love.

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Harry Styles

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Two days before the release of Harry Styles' new album Fine Line, Spotify chose 40 of his biggest fans for a private listening party held at the Magic Castle in Los Angeles. Guests were treated to specialty cocktails and sashimi, while a puppet performance told the fables of Eroda from his "Adore You" music video. Styles soon appeared onstage for a short and sweet appearance before everyone got to bump to the full album.

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Adam Sandler and The Weeknd

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Adam Sandler and The Weeknd posed together at the premiere of Sandler's new movie Uncut Gems in Hollywood.

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Danai Gurira and America Ferrera 

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Danai Gurira and America Ferrera teamed up to announce the 26th annual Screen Actors Guild Award nominations in West Hollywood.

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Reese Witherspoon 

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Ava and Deacon Phillippe came out to support their mom, honoree Reese Witherspoon, at the Hollywood Reporter's Power 100 Women in Entertainment celebration in L.A.

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