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Justin Bieber and Hailey Baldwin
Yes, even before they were engaged, Hailey Baldwin and Justin Bieber have had remarkably similar hair. The pair has, after all, as they’ve repeatedly stated, been longtime friends, as evidenced here in this photo of them with Hailey’s dad, Stephen Baldwin, on the red carpet of the Times Square premiere of Bieber’s 3D film Never Say Never in 2011.

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Ariana Grande and Pete Davidson
Before showcasing their love for each other via many tattoos and Pete-emblazoned sweatshirts, Ariana Grande and Pete Davidson, who of course are now engaged, first met when Grande appeared at Davidson’s workplace, Saturday Night Live, and made a joke about them smoking crack.

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Jennifer Lopez and Alex Rodriguez
At the time of this meeting Lopez was with Marc Anthony, but it’s only fitting given that more than a decade later, J.Lo would move on from her then-husband to the much more fittingly named A-Rod, both seen here at a Yankees game in 2005. Their relationship started off with a bang late last year, when they had to evacuate the restaurant during their first date.