Model Chanel Iman celebrated Mother's Day this year with a big announcement -- she has a baby on the way.
"Daddy and Mommy can’t wait to meet you," she captioned the black-and-white photo. "As I approach motherhood I want to wish a Happy Mother's Day to all mothers and mommies to be."
It will be the first child for Iman, 27, and husband Sterling Shepard, 24, a football player for the New York Giants.
The couple, who tied the knot in March, also posed for a topless photo shoot to celebrate their expanding family.
"We both are blessed in many different ways, that our love has created a wonderful new life and can’t wait for this ultimate blessing to arrive," Iman captioned the pair of photos. "We thank God for allowing us this opportunity to become parents and can’t wait to hold our baby in our arms!"
We both are blessed in many different ways, that our love has created a wonderful new life and can’t wait for this ultimate blessing to arrive. We thank God for allowing us this opportunity to become parents and can’t wait to hold our baby in our arms! ?? @sterl_shep3 //SWIPE ?? @jamesmacari ?? @monicarosestyle ?? @patrickta @amoycoutureny
Iman's baby news wasn't the only celebrity announcement Sunday. Pete Wentz also announced the birth of his second child, a baby girl, with his girlfriend, model Meagan Camper.
"So excited to introduce Marvel Jane Wentz," he wrote in a caption. "Feeling so grateful that she’s here... annnnd she’s already ready to takeover the world. Happy Mother’s Day @meagancamper and all the moms out there. We [heart] you."
Check out other ways Hollywood celebrated Mother's Day below.
The actress, who is expecting her third child, gave a touching tribute to her "great teacher," mom and Oscar winner Goldie Hawn.
When you grow up with a smile like this you are raised to find the joy in every moment. Raised to find the laughter in sometimes the most difficult circumstances and raised to share deep connections that fill our hearts with love and all the good things that nurture our soul. I know I feel the kind of freedom to love because of her. I know I feel the kind of strength to live fearlessly because of her. I know that I have never feared paving my own path because of her. I know I feel deeply unconditionally loved because of her. I also know that every mother is capable to give this to their children. She taught me that the love of mothers shape the future. Not through expectations but through love and honoring your children’s individual journey. To my great teacher, Happy Mothers Day. And to all of you other great teacher out there, Happy Mothers Day ??
The former lady first tweeted out a throwback photo of herself and brother Craig Robinson posing with their mother Marian Shields Robinson.
"It’s impossible for any picture to truly capture what my mother, Marian, has meant to me," she wrote.
The singer posted a loving tribute to his wife, model Chrissy Tiegen, who is expecting their second child.
The pop star posted a black-and-white throwback with Jackson family matriarch Katherine Jackson.
The hip-hop star celebrated his mom Sandi Graham for the "nine months you carried me through."
The Oscar winner posted a throwback photo of her mother, actress Kate McCauley Hathaway, and praised her for pursuing her "dreams of being an actress while raising three children before that was cool and before you got credit for it."
Happy #MothersDay to my Mom, the actress Kate McCauley Hathaway. This is a photo of her as Nellie Forbush in South Pacific. She was four months pregnant with my older brother when she played this part and did cartwheels on stage every dang night- twice on matinee days. She pursued her dreams of being an actress while raising three children before that was cool and before you got credit for it— and she hasn’t stopped. She is in rehearsal right now for “At Wit’s End” at Cape May Stage which runs May 24th- June 22nd. If you find yourself in the cutest town just south of #exitzero in NJ, you should check her out. Mama, you’re the Queen. Happy Mother’s Day xx
For those having a "less than perfect Mother's Day," Billie Lourd, the daughter of the late actress Carrie Fisher, had a message for them.