1993
Joined at the hip (and pretty much everywhere else).

1998
STAGE 1:
COLOR SEPARATION: Same outfits, different color jackets. Divergence begins.

2002
STAGE 2: A HEM!
Keeping their color differences, the girls now go to individual lengths.

2004
STAGE 3: SPLITTING HAIRS
Parting further, Mary-Kate becomes brunette; Ashley blonde.

2005
STAGE 4: AND THEN THERE WERE TWO!
Mary-Kate rolls street-style June 5, while Ashley— currently on the cover of Bazaar, all by herself— embraces her designer genes. Ashley has also split from beau Scott Sartiano.