Ariana Grande shares adorable throwback photo on 28th birthday

Ariana Grande is ringing in her 28th birthday with an adorable post on Instagram.

The Thank U, Next hit-maker took to the social media platform to share a cute baby photo of herself.

"hbd tiny, i am taking care of you !" she captioned the sweet snap .

Meanwhile, her famous friends took the opportunity to wish her on her day.

"Adorable & happy b day!!" her former Victorious costar Victoria Justice wrote.

"Happy birthday queen!!!!!!!!!!!!" Khloé Kardashian wrote. 

Take a look: