Jimmy Fallon and Justin Timberlake are rivaling Jennifer Lawrence and Amy Schumer for the "two celeb friends doing cool shit together" award.
Over the past week Jimmy and Justin have made headlines for hanging at US Open and dancing to Beyonce like no one (everyone) was watching. And now they're making the rounds on the web with an amazing new installment of the 'History of Rap' segment on Fallon's Tonight Show, rattling off over 30 years of hip-hop, from LL Cool J's "Rock the Bells," Fetty Wap's "My Way," and Drake's "Know Yourself."
If you want more, here's:
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