Watch videos about the life and tragic death of rap icon Tupac Shakur.

Music journalist Kevin Powell addresses the last time he saw Tupac as he reads aloud an excerpt from a letter he wrote to the late rapper on the 20th anniversary of his death.

What would you ask the astronaut who holds the NASA record for living in space? In the premiere of Biography’s new series, in partnership with Reddit, astronaut Scott Kelly takes us inside his historic trip aboard the International Space Station and how space travel has impacted his life.

On November 22, 1963, the world fell into mourning when President John F. Kennedy was assassinated in Dallas. Watch a video about that tragic day that changed the course of American history.

Watch videos about true artists, like Tupac Shakur and Maya Angelou, whose intellect and lyricism shine through in their rhymes.

Watch videos about the lives of rappers Tupac, Jay Z and Eminem, and how their hardships, raw talent and hard work shaped them to become the greatest.

Dr. Drew Pinsky sits down with Elizabeth Smart to ask questions about her approach to life after her kidnapping in an exclusive bonus clip from 'Elizabeth Smart: Questions Answered' on A&E.