The Met Gala went down in NYC on Monday, and in addition to the night's theme providing gorgeous fashion from some of our favorite stars, there was also a glaring theme among some of the younger guests: a lot of them have dated Justin Bieber. The "I'm the One" singer's most famous ex, Selena Gomez, was in attendance with her boyfriend, The Weeknd, and some of his past flings, including Hailey Baldwin and Sofia Richie, were also there. And in another weird twist of fate, Justin's rumored new girlfriend, Pitch Perfect 2 star Hailee Steinfeld, also made an appearance. A fan even snapped a photo of Justin meeting up with Hailee after the big night. While we don't think his exes became best friends while bonding in the bathroom (besides pals Hailey and Kendall Jenner), it was pretty odd seeing them all pop up at the same event. Hollywood is a small world, y'all.