Who else made the Top 10 list?
2 English actress Michelle Keegan, 26
Claim to fame: Playing Tina McIntyre in UK soap opera Coronation Street.
3 Barbadian singer Rihanna, 26
Claim to fame: The Grammy-winning hitmaker and fashion icon is best known for hits like Diamonds and Umbrella.
4 US model Emily Ratajkowski, 22
Claim to fame: She's the naked bosomy brunette in Robin Thicke's controversial music video for Blurred Lines.
5 US actress Kaley Cuoco, 28
Claim to fame: Playing Penny in hit US sitcom The Big Bang Theory.
6 US actress Mila Kunis, 30
Claim to fame: She had film roles in Oz The Great And Powerful (2013) and Black Swan (2010) and is engaged to US actor Ashton Kutcher
7 US singer Beyonce, 32
Claim to fame: She is the highest-earning black artist of all time and is married to US rap mogul Jay Z.
8 English actress Lucy Mecklenburgh, 22
Claim to fame: Former star of British reality soap opera The Only Way Is Essex.
9 US singer Nicole Scherzinger, 35
Claim to fame: The former Pussycat Dolls member has an on-off relationship with F1 racer Lewis Hamilton.
10 US actress Scarlett Johansson, 29
Claim to fame: Esquire's Sexiest Woman Alive last year played Black Widow in superhero flicks like The Avengers and Captain America: The Winter Soldier.