When Douglass and Zeta-Jones tied the knot back in 2000, they celebrated with an over-the-top, ten-tiered vanilla and buttercream cake, completely adorned in sugar flowers. Five-tiers just isn't thinking big enough. Photo: Pinterest

If Blake Lively and Ryan Reynold's elegant vanilla-and-sour-cream wedding cake with peach-apricot preserves and Earl Grey-milk chocolate buttercream wasn't enough, they also offered a pretty rad dessert buffet at their wedding. Photo: Instagram

Naked cakes had a moment in the wedding world, and even Duff got in on the trend, opting to go for the more simple, rustic glamour in hers to give it a "vintage homemade look." Photo: Pinterest

Cake or decor? For Kaley Cuoco and Ryan Sweeting's wedding, they opted to go non-traditional, commissioning an upside-down wedding cake hanging from a chandelier. Created by Kimberly Bailey from The Butter End Cakery, the cake took two hours to install, and had to be held upright by planks and sandbags. When it came time to cut into it, Cuoco had to be assisted by three people to make sure it didn't come crashing down. Photo: Instagram

Would you expect anything less than classic elegance from Clooney and Alamuddin? The couple cut into a four-tiered, square-style art deco chocolate wedding cake at their Venice wedding. Photo: Instagram

A royal wedding requires a show-stopping cake, and Prince William and the Duchess of Cambridge did not let us down. Their cake, made by pastry chef Fiona Cairns, was an eight-tiered traditional fruit cake with white icing, decorated with up to 900 sugar-paste flowers, garlands to mirror the architectural details in Buckingham Palace, lattice work, and piped leaf detail. Photo: Instagram

The amazing thing about Pitt and Jolie's wedding cake isn't how many tiers it had or the intricate fondant craftwork, but that it was made by their son, Pax. Photo: Instagram

Like her sister, Khloe, Kim opted for a classic, tuxedo-inspired black and white wedding cake when she married Kris Humphries. The eight-foot tall cake weighed an insane 600 pounds, and was a chocolate-chip marble cake decorated with buttercream frosting. Photo: Pinterest

For Cruise and Holmes's Italian wedding, they chose a five-tiered white chocolate mousse cake covered in marzipan roses. Photo: Instagram

If you fell in love with Vergara's custom Zuhair Murad couture gown, wait until you see her cake. Designed by Sylvia Weinstock, the five-tiered cake featured a quilted design, flowers over each tier, and was topped with a giant floral arrangement. Photo: Instagram

Kardashian and Odom's wedding cake, made by Hansen's Cakes in Los Angeles, was a five-tiered, sleek black and white creation, filled with chocolate buttercream and white chocolate chips. Oh, and bonus — it was even taller than Odom. Now that's impressive. Photo: Instagram