This week in the world of celebrity Instagram, there's been a lot going on.
New mum Blake Lively made her first public appearance since she gave birth, by posting up a snap of her and photographer Mario Testino on a shoot.
Lena Dunham shared the most epic throw back Thursday picture of herself when she was a child, in which she looks remarkably angry.
But perhaps our favourite is Jennifer Lopez's selfie, bringing back Jenny from the block.
Take a look at more of our favourite pictures in the gallery below