Celebrity week in photos: Madonna reunites with Sean Penn, Nick Jonas hits London and more

Celebrities were back in the swing of things after a nice holiday break. Leading up to one of the most fun nights in Hollywood — the Golden Globes — the likes of Nick Jonas, Olivia Munn and others were making the rounds in other cities before officially entering into awards season.
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January 9: Amber Heard and Johnny Depp supported the Art of Elysium’s 9th Annual Heaven Gala by visionaries Vivienne Westwood & Andreas Kronthaler at 3LABS in Culver City, California.
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January 9: Madonna, along with her two youngest children David Banda and Mercy James, supported ex Sean Penn at his Help Haiti Home gala in Beverly Hills. During her speech, she said "I want to say Sean, I love you, from the moment that I laid eyes on you."
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January 9: Tea time! Cate Blanchett and Rooney Mara spent their Saturday afternoon with BAFTA at their tea party at the Four Seasons hotel in Beverly Hills.
Photo: Getty Images for BAFTA Los Angeles

January 9: Ladies who lunch! Chanel Iman and Jaime King sneaked away for some catch up time during W Magazine's It Girl luncheon in partnership with Coach and Moet & Chandon at A.O.C in L.A.
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January 8: 'Mad Men' forever! Kiernan Shipka, January Jones and Don Draper himself, Jon Hamm reminisced at the AFI Awards.
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January 8: Katie Holmes and Gillian Anderson supported Photographs by Kelly Klein hosted by Barry Diller and Jason Weinberg at BOA Steakhouse in West Hollywood.
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January 8: Aidan and Mr. Big could be friends! John Corbett with love Bo Derek, Sharon Stone and Chris Noth attended the Ketel One Vodka sponsored 'Spotlight' pre-Golden Globes party at Bouchon in Beverly Hills.
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January 8: Hello handsome! Nick Jonas flew overseas to sit front row and attend the TOPMAN Men's AW16 fashion show in London.
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January 7: Ksquared! Kirsten Dunst and Kristen Wigg enjoyed girls' night out at W Magazine and Dom Pérignon's celebration of the 73rd annual Golden Globes event at Chateau Marmont in West Hollywood.
Photo: David X Prutting/BFA

January 7: A touch of black! Rooney Mara toasted to awards season at the W Magazine and Dom Pérignon's celebration of the 73rd annual Golden Globes event at Chateau Marmont in West Hollywood.
Photo: David X Prutting/BFA

January 7: Lady in red! Suki Waterhouse was a vision during the W Magazine and Dom Pérignon celebration the at Chateau Marmont.
Photo: David X Prutting/BFA

January 7: Angels with a punch! Victoria’s Secret Angels Martha Hunt and Elsa Hosk hit the ring in Victoria's Secret Sport at Aerospace in New York City.
Photo: Dimitrios Kambouris/Getty Images for Victoria's Secret

January 7: It's Showtime! Damian Lewis and Emily Rossum stopped to chat during the premiere of Showtime's new series 'Billions,' premiering Sunday January 17 at 10 p.m., at The Museum of Modern Art in New York City.
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January 6: Kevin Hart and Ice Cube chopped it up with fans at the premiere of their new film 'Ride Along 2' in Miami.
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January 6: Miami heat! Olivia Munn dazzled at the premiere of her latest film 'Ride Along 2' in Miami.
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January 6: Leonardo DiCaprio sported a cleaner look, and spent time with his good pal Jonah Hill during a screening of his new film 'The Revenant' in New York City.
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January 6: Fit and feeling it! Fitness guru Jillian Michaels took a stroll around Malibu in her George Loves slim sweatpants.
Photo: StarTraks Photos

January 5: #StopGunViolence! Amy Schumer and her siblings took a trip to the White House to support President Obama's new gun control laws.
Photo: Instagram/@amyschumer

January 5: Caitlyn Jenner hosted a special screening of "Tangerine,' where she posed with the stars Mya Taylor and Jay Duplass in L.A..
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January 6: Boys' night out! Chris Martin and his son Moses spent some quality time courtside at a Los Angeles Lakers game.
Photo: GC Images

January 5: Vamp it up! Kristen Stewart attended the Film Society of Lincoln Center luncheon in New York City.
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January 5: Coffee break! Katie Holmes picked up her coffee in style while wearing a shirt by Blue Shirt Shop and jeans by DL1961 in L.A..
Photo: StarTraks Photo /Jack Hammer

January 5: Matt Damon and his wife Luciana Barroso attended the National Board of Review gala in NYC.
Photo: Getty Images

January 5: Emily Blunt and Benicio del Toro stopped for a quick photo during the National Board of Review gala in New York City.
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January 5: Jessica and Ashlee Simpson spent some quality sister time with their husbands, Eric Johnson and Evan Ross at Linda Perry's "Hands of Love" celebration in L.A..
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January 5: Quick kiss! Christina Aguilera helped pal Linda Perry celebrate her new song for the film 'FreeHeld' in Los Angeles.
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January 4: Kristen Stewart and Julianne Moore cozied up next to each other during the New York Film Critics Circle Awards at TAO Downtown in New York City.
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January 3: White out! Kristen Stewart attended a screening of 'Clouds Of Sils Maria' at IFC Center in New York City.
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January 2: Johnny Depp pointed to the prettiest lady in the room, his wife Amber Heard, during the 27th Annual Palm Springs International Film Festival Awards Gala.
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