It's no secret that overalls can be tricky to pull off. However, Rihanna and Alexa Chung are just two celebrities who've made a strong case for the '90s denim one-piece. Rihanna went more laid-back and casual in her Big Star USA overalls with a tight tee and kicks, while Alexa elevated her black overalls with ladylike add-ons. Plus, Selena Gomez and Alessandra Ambrosio tested out the trend too. Watch on for outfit inspiration just in time to wear overalls this weekend! On Allison: BCBG Max Azria, Elizabeth and James, TOMTOM.