Who said "Be yourself; everyone else is already taken."?

This quote is attributed to Katie Couric.

Be yourself; everyone else is already taken. - Katie Couric

"Be yourself; everyone else is already taken."

Katie Couric

News Anchor American Born 1957 (age 69)

"The person who says it cannot be done should not interrupt the person doing it."

"Once you choose hope, anything is possible."

"It's our choices that show what we truly are, far more than our abilities."

"The only way to do great work is to love what you do."