Yay, you just got invited to a wedding! But the invitation indicates you need to dress in cocktail attire. Or formal attire.

These ankle- or floor-length frocks range from casual to formal and flowy to form-fitting. Our favorite maxi dresses shine on their own and are flexible enough to be worn just about anywhere ...

See what's sizzling (and fizzling) on the red carpet this week Alex Apatoff is the Executive Editor of PEOPLE Digital. She has worked on the style and beauty team and in a cross-departmental role.