Crash dieting is nothing new — and some celebrities are still going to great lengths to shed a few extra lbs before hitting a big red-carpet event.

Take Jessica Biel, for example, who bathed in 20 lbs of Epsom salt before hitting the 2024 Met Gala. From extreme diet hacks to weight-loss drugs like Ozempic and Mounjaro, Life & Style reveals the real way some of these A-list stars got skinny.