"So Smitten," the actress wrote on Instagram while tagging Cameron Smoller.
"Everyday," the supermodel captioned her Valentine's Day Instagram with Zayn Malik.
"I never get to pick the movies anymore," the actor joked while seeing Fifty Shades Darker. "Happy Valentine's Day!"
"Fifty Shades of Pink #ValentinesDay," the fashion designer shared on Instagram while posing with her hubby.
"Happy Valentine's dada @davidotunga," the American Idol alumna wrote on Instagram. "Let's see what we can get ourselves into tonight !!!"
"Stealing hearts mama," Rob Kardashian shared on Instagram as his daughter wore a pair of Freshly Picked Mocs.
"Just US, doing US, being US on another adventure... life is just so much better with Dumplin's Chin on my shoulder," the Vanderpump Rules star shared on Instagram. "Happy Valentine's Day, Dumplin!"
"A dinner date with my Valentine @mikefisher1212," the country music superstar shared on Twitter.
The Bachelor stars celebrate Galentine's Day at 102.7 KIISFM's Pick Your Purse party sponsored by Zeel and Surfair.
"Happy Valentine's Day to all," the Team USA athlete wrote with a few gifts.
"Happy Valentine's Day from these two bundles of love! #cupids," the How I Met Your Mother star wrote on Instagram. Neil's son was spotted wearing Naturino high-top shoes.
Surprise! This undercover couple finally took their romance public on Valentine's Day. "Happy Valentines Day my love! #MyCuddlyValentine #Valentines," the actress captioned her sweet tribute to the comedian.
These longtime lovebirds couldn't help but share their love to the 'gram, singing along to rap classic "Nuthin' but a 'G' Thang." "#whenbffisbae," the actress captioned the video.
The pop singer made the most of feeling under the weather, sharing a video of herself singing to Instagram captioned, "Sick Girl in bed in. Her nightgown. Not sung well but done with ♥️! Happy Valentine's Day!!"
The "Side to Side" songstress decorated a keyboard with V-Day messages for her rapper beau, captioned with more than a few emojis.
The reality star shared a photo kissing her man and wrote, "Happy Valentine's Day."
The pair rang in Valentine's Day with their newborn baby, and Maksim wrote, "Happy V-Day to my absolute number one Thank you, I love you and I'm in love with us... #Family #babyChmerkovskiy #HappyValentinesDay."
Sarah Palin's daughter shared this throwback photo. "2 years ago today, this handsome man took me on our 1st date!! It's been rainbows and butterfly kisses ever since," she wrote. "Just playinn!! We have seen some of the highest highs - and lowest lows, but I am so thankful for where God has brought us, you are the greatest husband, father, and best friend that I could've ever dreamt of. Thank you for all you do and sacrifice for our family, you are my world!!"
The singer woke up like this! "Woke up in Muah @happyhippiefdn Special Valentines edition merch!!!!!!!"
The No Doubt singer shared a photo kissing on her country-singing boo, writing, "#happyvalentinesday gx."
The Braxton Family Values star celebrates the holidays with her kids at Buca di Beppo in New York City's Time Square.
The former FLOTUS posted a photo of her toes in the sand with President Obama and wrote, "Happy Valentine's Day to the love of my life and favorite island mate, @barackobama. #valentines."
The Orange Is the New Black star created a sweet collage for her girlfriend, writing, "We have made some pretty bad decisions in our lives... mostly fashion related but one decision we have never regretted is loving each other.. happy Valentine's Day."
Kourtney Kardshian shared this photo of her daughter on Valentine's Day, looking precious in this amazing outfit.