If I straighten my hair and put it in braids overnight, will it turn out good?

I have thick, frizzy, curly hair (I can thank my daddy for that! :]). Anyway, I don't usually straighten my hair because it seriously takes me an hour :P. Anyway, I'm going to a wedding and I wanted to know if I straightened my hair and put it in braids overnight would it look good in the morning? Thanks!