Lose weight/tone up in 4 days?

Hiii, i've recently gained a ton of weight, and now I need to at least look a little better for a photoshoot I have coming up on Sunday. I know it's not possible to keep weight off if you lose it that fast, so I'm not looking for anything long term, just something I can do to look a little less chub. I'm 5'4" and currently weigh 110 lbs.