Ah, Throwback Thursday.
Not only is it a special day for Twitter users everywhere, but it's the time when, once a week, celebrities share old photos of themselves -- making us remember that they weren't always famous.
Take Busy Philipps, for example -- today she got nostalgic and shared a photo of her and a childhood friend sporting '80s-style dresses and posing under a Christmas tree back in the day. And it's AMAZING.
— Busy Philipps (@Busyphilipps25) June 13, 2013
Check out other celebrity #TBT posts below: