Singer Justin Bieber thinks Selena Gomez "looked gorgeous" at the Met Gala 2015 but the former couple only exchanged a few words at the event.

The 21-year-old singer, who split from Gomez last October after more than four years of dating, randomly paid her a compliment while being mobbed by fans here after the event.

"Selena looked gorgeous at the Met Ball" while posing for photographs, Bieber told tmz.com.

The former couple appeared to be on good terms but didn't spend much time together, as the Canadian singer was dancing and having a great time with his friends, including Kendall Jenner, Usher and Hailey Baldwin -- who he was also linked to earlier this year.

"He hung out with Kendall and that crew a bit as well. Everyone was dancing and having an amazing time," a source told eonline.com.