Under-$100 Prom Dresses

Dinner reservations? Check. Fancy limo? Booked. Corsages and boutonnieres? Done and done. Now all that's left to do is help the kids find a jaw-dropping prom dress. Thankfully, there's no need to blow an entire year's allowance on this special occasion, which is why we've rounded up plenty of formal frocks—all clocking in at $100 or less—worthy of even the most fashionable prom queen. SHOP IT ALL BELOW.