This week's best candid celebrity photos.
December 18: Jenna Dewan Tatum and Molly Sims were moms on a holiday mission during the Baby2Baby holiday party presented by Old Navy at Montage in Beverly Hills. Photo: Stefanie Keenan/Getty Images for Baby2Baby
December 18: Honestly chic! Jessica Alba showed off her mommy style during the Baby2Baby holiday party presented by Old Navy at Montage in Beverly Hills. Photo: Stefanie Keenan/Getty Images for Baby2Baby
December 18: Hailee Steinfeld took the stage during Y100's Jingle Ball 2016 at BB&T Center in Miami. Photo: John Parra/Getty Images for iHeart
December 18: Fifth Harmony had their last performance as a party of five at Y100's Jingle Ball 2016 in Miami, before it was announced that Camilla Cabello would be leaving the group. Photo :John Parra/Getty Images for iHeart
December 18: Must be the music! Diplo got the party started at Miami hotspot STORY. Photo: WorldRedEye.com
December 17: Paris Jackson, 18, spent some quality time with her godfather Macaulay Culkin in New York City. Michael Jackson's daughter had fun giving the 36-year-old Home Alone star a pedicure. Paris posted the photo to her Instagram, writing: "model? nah i paint hipsters toenails for a living." Photo: Instagram/@parisjackson
December 16: Ryan Reynolds and Blake Lively celebrated the holidays at Disneyland where they met up with Mickey Mouse at Sleeping Beauty's Winter Castle in Anaheim, California. Photo: Richard Harbaugh/Disneyland Resort
December 16: Bella Hadid celebrated her cover issue of Paper magazine at Kola House in NYC. The supermodel, who attended the event hosted by Tidal, caught a special performance from BFF Justine Skye. Photo: Instagram/@bellahadid
December 16: Sing stars Matthew McConaughey and Reese Witherspoon stopped by Build Series in NYC to talk about their latest film. Photo: Monica Schipper/WireImage
December 15: Presidential freakout! Octavia Spencer couldn't contain her excitement as she and Hidden Figures co-stars Kevin Costner and Taraji P. Henson were surprised by President Obama during an event honoring the film at the White House. Photo: Instagram/@whitehouse
December 15: Hill Harper andJosh Lucas attended the 13th annual Hennessy V.S.O.P Privilège Awards at Sousa House in New York City where Hennessy recognized Hill for his dedication to empowering the next generation of multicultural professionals. Photo: Donald Traill/Invision for Hennessy/AP Images
December 15: Ryan Reynolds and Blake Lively introduced the world to their two little girls during the Deadpool actor's Hollywood Walk of Fame ceremony. Photo: Tommaso Boddi/WireImage
December 15: Street style! Gigi Hadid didn't let the frigid weather stop her from showing off her winter style and rocking ERTH jewelry by Nicole Trunfio while running errands in NYC. Photo: Raymond Hall/GC Images
December 15: Lea Michele got real, and zen, at Aerie's NYC pop-up shop. Photo: Michael Simon, StarTraksPhoto.com
December 15: Jacob Tremblay was dressed to theme in his Star Wars pajamas during his trip to watch Rouge One: A Stars Wars Story. Photo: Instagram/@jacobtremblay
December 14: Pour it up! Cindy Crawford knocked back a shot of Casamigos tequila from birthday boy Rickie Fowler's Ryder Cup during his 28th birthday celebration at Catch L.A. Photo: Instagram/@cindycrawford
December 14: Getting artsy! Jessica Biel stopped by her restaurant Au Fudge in L.A. and snagged a photo in front of the mural inspired by the new Netflix kids series Luna Petunia. Photo: Startraks
December 14: Oops! Will Smith and Collateral Beauty co-stars Edward Norton, Naomie Harris and Jacob Latimore had some fun during the film's photo call in London. Photo: David M. Benett/Dave Benett/WireImage
December 14: R&R! Ashlee Simpson Ross enjoyed a pre-holiday drink at The Coffee Bean & Tea Leaf’s holiday party in L.A. Photo: Dustin Downing for Coffee Bean
December 14: Edgar Ramirez hosted the kick off of Gran Centenario Tequila's Angels on Earth 2017 at Sunset Tower Hotel in Hollywood. Photo: Phil Faraone/Getty Images for Gran Centenario
December 14: Sarah Michelle Gellar enjoyed Sauvignon Blanc from Kim Crawford wines limited-edition holiday bottle during a shopping event at CURVE in Culver City. Photo: Michael Simon
December 13: This is Us star Justin Hartley got virtual during The Night Before, A Samsung VR Experience at The Grove in L.A. Photo: Charley Gallay/Getty Images for Samsung
December 13: Mr. West meets Mr. Trump! Kanye West (and his blonde hair) met with President-elect Donald Trump inside of Trump Towers in NYC. Kim Kardashian's husband took to his Twitter to share that the two discussed multicultural issues and showed off his signed Time magazine. Photo: TIMOTHY A. CLARY/AFP/Getty Images
December 13: Nolan Gould and Santa posed with guests as they surprised 150 children from Children's Hospital Los Angeles and P.S. ARTS, at Delta Air Lines' sixth annual Holiday in the Hangar Celebration in L.A. Photo: Michael Kovac/Getty Images for Delta AirLines
December 12: Lea Michele surprised a lucky Amazon Prime Now customer in L.A. with a Golden Ticket prize. Photo: Michael Simon
December 12: Newlyweds and Pitch Perfect's Anna Camp and Skylar Astin hosted an Epic Holiday event in Beverly Hills. Photo: Michael Simon for American Express
December 12: Mario Lopez had the help of his son Nico when he picked up MusclePharm at Costco Wholesale in Burbank. Photo: Michael Williams
December 12: Selma Blair and Jaime King got into the holiday spirit with the characters of Frozen during the Tiny Prints Presents The Baby2Baby Snow Day at The Grove in L.A. Photo: Stefanie Keenan/Getty Images for Baby2Baby & Tiny Prints
December 12: Reese Witherspoon showed off her artwork next to some lucky kids during the Tiny Prints Presents The Baby2Baby Snow Day at The Grove in L.A. Photo: Stefanie Keenan/Getty Images for Baby2Baby & Tiny Prints
December 12: All of the lights! David Beckham turned NYC's Empire State Building blue in honor of UNICEF's 70th anniversary. Photo: Chance Yeh/FilmMagic
December 12: Semper Fidelis! Chris Pratt snagged a photo with a few proud men and women of the United States Marine Corps at the Marine Corps Air Station in San Diego. Photo: Rich Polk/Getty Images for Sony Pictures Entertainment
December 12: LeBron James and Jay Z posed onstage with an award during the Sports Illustrated Sportsperson of the Year Ceremony in Brooklyn. Photo: Bryan Bedder/Getty Images for Sports Illustrated
December 12: Olivia Culpo shined in C&C California's slip dress while out and about in Hollywood. Photo: StarTraks
December 12: 'Tis the season! Michelle Obama and Ryan Seacrest read to some lucky kids during a visit to the Children's National Health System in Washington, D.C. Photo: Paul Morigi/Getty Images
December 8: Hailee Steinfeld got in a candid shot with some friends during Republic Records president Charlie Walk's holiday party at Megu in NYC. Photo: Megu