Evening event, is this acceptable to wear?

I have a "formal" dinner/evening event on friday, and dont know what to wear. Well I was thinking wearing a high waisted black skirt with a pair of heels and then some top...but I dont know whether to go:
1) tank top with braces
2) Blouse/shirt
3)...

high neck top with a fancy lacey top on top?

Or any other suggestions?

I would go with pretty blouse, it sounds to compliment the rest of the outfit, hope you have fun.