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"Rizzoli & Isles" Season 4

Angie Harmon and Sasha Alexander in "Rizzoli & Isles" Season 4.

12 Fashion Lessons We Learned From 'Rizzoli & Isles'

As the TNT drama "Rizzoli & Isles" starts its fourth season this week, we track some key fashion moments from the crime-fighting pair. Bostonian cop Jane Rizzoli and Dr. Maura Isles give us 12 pointers on the best fashion lessons that define their style these past three seasons. — Erin Kim, Yahoo! TV