The chart-topping star beats former 1D band mate Harry Styles to top the poll for a second consecutive year, while his fiancé heads up the female list for the first time.
Pop power-couple Zayn Malik and Perrie Edwards have been voted 'Sexiest Male & Female In Pop 2015'.
Zayn beat off tough competition from the likes of American singer Adam Lambert and former One Direction band mate Harry Styles to top the poll for a second consecutive year, with 32% of the final vote.
Little Mix's Perrie Edwards also has a lot to celebrate after topping the female poll for the first time, stealing the crown from last year's winner Britney Spears. The 'Black Magic' star came in at No.1 with 17% of the vote ahead of Fifth Harmony star, Camila Cabello and pop princess, Ariana Grande.
It's the first time that a couple have bagged the 'Sexiest Male & Female In Pop' title. Previous winners include Rita Ora, Britney Spears and Josh Cuthbert.
You can check out the full list of winners on the Capital App available to download at capitalfm.com
Top 10 Males 2015
1. Zayn Malik
2. Adam Lambert
3. Harry Styles (One Direction)
4. Justin Bieber
5. Luke Hemmings (5SOS)
6. Niall Horan (One Direction)
7. Nick Jonas
8. Louis Tomlinson (One Direction)
9. Michael Clifford (5SOS)
10. Calum Hood (5SOS)
Top 10 Females 2015
1. Perrie Edwards (Little Mix)
2. Camila Cabello (Fifth Harmony)
3. Ariana Grande
4.Demi Lovato
5.Selena Gomez
6. Rihanna
7. Beyonce
8. Taylor Swift
9. Katy Perry
10. Britney Spears