Justin Timberlake and Ellen DeGeneres have been friends for more than a decade, and they've shared plenty of special (and hilarious) moments together. During Justin's first appearance on Ellen's show in 2003 — which you should absolutely watch — she full-on fangirled over him, and she's continued to be one of his biggest supporters. She shared sweet words about Justin and the rest of *NSYNC during the group's recent Hollywood Walk of Fame ceremony, and during their surprise appearance on her show, she cracked up fans when she teased Justin over a game of Never Have I Ever. Meanwhile, Justin has presented Ellen with several honors at award shows over the years, and they're regularly spotted joking around backstage when they attend events together. Check out some of the pair's best moments, then watch *NSYNC's fun appearance on her show.