In honor of one of the hottest fashion icons of this century, here’s a tribute to the Material Girl’s 50th birthday with a look back at her fashion savvy ways.

Ever the chameleon, her looks have drastically changed (as noted in these Associated Press photos) since she first hit the music scene.

April 1985

April 1986

July 1990

May 1991

September 1994

December 1996

February 1999

July 2001

February 2006

December 2007

May 2008