Oh. My. Gaga. 🎭 With four costume changes, Lady Gaga (@ladygaga) camps it up big time as one of the most buzzed-about guests at the #MetGala. The event hosted by Vogue (@voguemagazine) is held annually on the first Monday of May with the Metropolitan Museum of Art’s Costume Institute (@metcostumeinstitute) in New York City. Check out our story to see how “Riverdale” star Charles Melton (@melton) prepped for the big night. ✨And.... spoiler alert: some of his famous friends stop by for a cameo! Video of @ladygaga by @bardiazeinali