Pop star Jessie J was barely recognizable yesterday at Heathrow Airport -- where she ditched her usual heavy makeup (right) for a much more natural look.
Jessie just opened up to Cosmopolitan UK about her low-key days off, saying she'll walk around with "No makeup, hair undone…I'm totally unrecognizable! I'm happy to expose the fact that I don't look like I do when I wear makeup. People think as soon as you get signed you look great all the time, but it's not the case."
We think she still looks great without the face paint -- how 'bout you? Sound off below and check out our gallery above of more stars without makeup!