By Jennifer Davis
Updated Jan 29, 2013 @ 11:06 am
Credit: Seth Poppel/Yearbook Library; Michael Tran/FilmMagic

Happy 59th birthday, Oprah Winfrey! From her start as an up-and-coming host on A.M. Chicago to her 25-year run as a daytime talk show host, the television visionary has had many changing looks throughout the years. To celebrate her birthday, take a look back to see how Winfrey has transformed by clicking through the gallery below.