Emma Stone was left seriously red-faced on stage last night!

Emma Stone's amazing Dior Haute Couture tuxedo dress may have won in the style stakes at last night's SAG Awards, but it caused her more than a little embarrassment, too!

The actress took to the stage along with her Birdman co-stars to accept the award for Outstanding Performance by a Cast in a Motion Picture, but didn't think to tuck in the black net train of her dress. When fellow star Naomi Watts walked up to the microphone, things went a bit pear-shaped…

While we do of course feel sorry for poor Naomi after that Jennifer Lawrence-style trip, it's Emma's face that is winning the internet this morning:

We've seen that expression somewhere before…

At least Emma can rest easy in the knowledge that she looked seriously gorgeous in the offending dress!

What a beaut!