Don't get us wrong, we love Cameron Diaz.

However, while appearing at an after party for Shrek the Musical, Diaz showed up in an underwhelming black cape/smock that reminded us of something out of Hogwarts.

This lazy outfit proves that even movie stars get sick of dressing up for parties.

The portrayer of Princess Fiona usually complements her voice with a stunning look, but she went with a frumpy black ensemble this time...

Every time she turned around, we were hoping Cameron Diaz would lose the cape and stun us with a gorgeous dress. But as you can see below, no luck...