On this day in hip-hop history, Tupac Shakur joined up with Death Row, Usher had his breakthrough, Jay-Z previewed 'In My Lifetime, Vol. 1' and Mariah Carey showed off a different side of her.
Beyoncé arrives on planet Earth, super producer/DJ Mark Ronson is born, and Usher lets the world in on his relationship with Chilli via "U Got It Bad."