Most Beautiful 2013: Behind the Scenes with Amanda Seyfried, Gabrielle Union and More

PEOPLE’s annual Most Beautiful issue has arrived – and in its glossy pages, the stars look appropriately picture perfect.

But how did they get that way? See how Amanda Seyfriend, Gabrielle Union, Sheryl Crow and Jane Fonda got glam for their Most Beautiful shoots with our behind-the-scenes Instagram photos.

The Most Beautiful issue of PEOPLE – with cover girl Gwyneth Paltrow – is on sale now. And don’t forget to follow PEOPLE on Instagram for more backstage shots from the biggest celebrity events!