While Megan Fox was voted the sexiest woman in the world by the men's magazine FHM in 2008, she isn't as self-assured as people may assume.

"I'm very confident in how I project my personality," she told Cosmopolitan in 2012. "But in terms of how I look, I'm completely, hysterically insecure. I'm self-loathing, introverted, and neurotic."

Despite her insecurity, the brunette shines on the red carpet. Her looks have even helped her become the celebrity face of Avon's new his-and-her Instinct fragrances.

"No one evokes magnetic attraction better than Megan - men and women alike see her as a bold, captivating beauty. She's the perfect face for a scent that's intensely alluring and a little bit dangerous," Vice President of Global Fragrance Marketing Denise McEvoy said.

The Teenage Mutant Ninja Turtles star is also enthused with the opportunity. She said in a released statement that when Avon approached with to be the face of Instinct she was "thrilled by the opportunity." She added, "I'm so excited to be a part of this brand I've always loved and respected."

When she's not working, Fox doesn't desire to be photographed and shies away from the limelight.

"Some girls love to go to the airport and have 50 paparazzi on them. I go to the airport and have a mental breakdown," she also told Cosmopolitan. "But I just have to go balls to the wall and embrace it."

Click through to view photos of Megan Fox on the red carpet.