For Mother's Day today, several of our favorite stars -- including Demi Lovato, Channing Tatum, Rihanna, Miley CyrusJustin Bieber, Britney Spears, Lucy Hale, Kim Kardashian -- tweeted Happy Mother's Day wishes to their moms and moms around the world, and also shared some private photos with their moms. Here are some of our favorites: 

Demi Lovato tweeted a picture of her mom in a bikini...

Channing Tatum thanked his mom and wife (awww)...

Rihanna thanked her mom...

Bruno Mars shared what we all agree with!

Justin Bieber shared a baby photo with mom!

Miley Cyrus shared a photo with mom on Instagram!

Britney Spears thanked Mama Spears...

Bella Thorne gave sincere thanks to her mom as well...

Lucy Hale posted a family photo of herself as a baby with her mother...

Kim Kardashian posted an ADORABLE photo of her and baby North West!

Harry Styles also sent his wishes...

Lea Michele also shared a personal photo...

And finally, Justin Timberlake thanked his mother online as well!

We're sure these mom's deserve praise for raising such talented people! Happy Mother's Day to these moms and all other moms around the world!