Duffy says singing her hit record Mercy is like having sex.
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The 23-year-old Welsh star – who shot to fame this year after releasing the track which topped the UK singles chart – has revealed she gets the same great feeling from performing the catchy tune as she does from steamy bedroom antics.
She said: “I sing Mercy several times a day and it’s just like having sex every time.”
The singer also revealed she is currently single because she doesn’t have time for a boyfriend.
She said: “I’ve really put my heart into my career. I’m giving it so much of my emotions on a daily basis.”
However, she added to the Observer Music Monthly magazine: “Room service, burger and chips, some kind of s****y foreign film – it’s not quite what you want when you get back into a nice hotel room.”
Duffy is set to play the UK’s Glastonbury and V Festivals this summer.