a line green dress Halter Neck Backless Long Emerald Prom Dresses with Pocke – abcprom Beads Back Style Long Formal A Line Slit

Eilish's all-black, busy look by Simone Rocha appeared to draw from various '90s styles

Whether that means taking in a gown to make it smaller for your hips, bust, or waist (or maybe everywhere), adding cups, shortening straps, hemming the length, and adding in the bustle for your train, alterations are a standard part of the whole process

So keep on reading to shop from my current 17 favouritesmake sure you've got a showstopper for that next major event in the calendar

Whether cropped, floor-length, textured or plunging, Aniston has proven to be a master of the look

"I love the tea length because it's curated to your proportion and forever charming," Paige says