It's April in D.C., which means it's party time — as in, time for black-tie dinners, fancy cocktail parties, and swank galas. If you're finding yourself on the receiving end of a few invites — maybe your office is throwing a shindig or you've snagged a ticket to one of the many charitable soirées coming up — you need a go-to formal dress that looks great and makes you feel like the belle of the ball. This is especially true if this is your first big-ticket event and you're sortafreakingoutrightnow because you don't have anything to wear.But don't fret! We've rounded up a bevy of beautiful dresses, from elegant minis to statement maxis, that will have you black-tie ready in minutes, no matter your budget. And even if this isn't your first time on the guest list, we're pretty sure you'll find a frock here that you just can't live without. Click through to size 'em up for yourself.