For Mother’s Day, many celebrities shared heartwarming messages, including Gwyneth Paltrow, Gigi Hadid, Justin Bieber, Ariana Grande, Harry Styles, Justin Timberlake and Kourtney Kardashian.

The stars shared pictures and messages to their moms on Twitter and Instagram. Here are some of them:

Gwyneth Paltrow addressed her message to all moms across the world.

Happy Mother's Day to this amazing beauty and all moms everywhere 💖#blythedanner

A post shared by Gwyneth Paltrow (@gwynethpaltrow) on

Ariana Grande shared a sweet picture of her mom and her as a baby.

every day is your day, mommy!!!!! 🎈I love you with all my heart

A post shared by Ariana Grande (@arianagrande) on

Kourtney Kardashian shared a super adorable picture telling her mom that she is “loved by [her] six children and six grandchildren every day.”

Justin Bieber also shared a childhood photo for Mother’s Day.

Harry Styles had wishes for every mother on Mother’s Day.

Justin Timberlake said he was proud to be his mother’s son on Twitter.

Gigi Hadid wrote a long message on Instagram and shared a beautiful photo of her and her mother.