Lose a belly in a day??? Unless you can schedule surgery ASAP, it's simply not physically possible. Even if you did crunches non-stop for 24 hours and ate nothing you'd still have the belly. This is a project that will take months, not one day. Get yourself a body shaper and start exercising and watching what you eat now so you'll be ready for future parties.

Its not possible to lose it in one day and I suspect you know that. The only tactic now is camaflage. Magic Knickers in M & S will help plus get a pretty wrap top, the wrap will camaflage your tummy and the Magic Knickers hold you it. Enjoy the party and dont stress it, people will remember you not your tum;)

No way!!!! There is no such thing as losing you stomach in 1 DAY!!!! Maybe 4 months!!!!! Just suck in or Just Have FUN! If you wear a cute outfit and have a great personality and smile they wont look at your belly. But in the meantime you can try to fast for a day!