For Harry Styles, it's not as common... because he doesn't really do red carpet events anymore.
HOWEVER, being the co-host of the 2019 Met Gala (that was practically catered to his style), he had to. In doing so, he ran into 'ex' Kendall Jenner.
PEOPLE shared the intense photo of the pair looking VERY smiley with one another. However, we're sure they're just friendly smiles. Harry is wearing a see-through blouse and earring after all.
Harry and Kendall were first linked in January 2014, with rumours reigniting nearly two years later after photos of the pair on holiday together December 2015 were leaked online.
At the time, Khloé Kardashian said the pair were "dating".
A source told PEOPLE at the time: “Harry has always been ‘that guy’ for Kendall. She would love to be in a real relationship with him, but he’s always had issues settling down in the past with her because he has that rock star mentality.”
They added: “Even though she’s dated and hooked up with other guys, she could never really get serious with someone because she never got over her feelings for Harry.”