Jen knew best. Duh!

Jennifer Aniston had to fight for her hair transformation while playing Julia in 2011's 'Horrible Bosses,' she said, arguing for a wig because she wanted the character to not look exactly like she did ...

Jennifer Aniston reveals the behind-the-scenes fight for her ‘Horrible Bosses’ wig, determined to transform her look despite the studio’s doubts—and she’s glad she won.