Norah Jones had reservations about recording wintery love song Baby, It's Cold Outside with grizzled country icon Willie Nelson - because she feared the duet would be "creepy".
The 30-year-old singer teamed up with the 76 year old for the track on Nelson's upcoming American Classic standards album, and admits the 46-year age difference between the odd couple made her think twice.
In the song, recorded by duos like Tom Jones and Cerys Matthews, Ann-Margret and Brian Setzer, Lee Ann Womack and Harry Connick, Jr., former couple Jessica Simpson and Nick Lachey and Rod Stewart and Dolly Parton, the male tries to talk his belle into staying the night - because it's cold outside.
Jones says, "I thought, 'He's like my grandpa.' (But he's) one of my heroes."
Since breaking onto the scene in 2002 with her debut album Come Away With me, which topped the Billboard chart, Jones has brough new interest to the jazz genre.
She has had two further album Feels Like Home and Not Too Late which have sold eighteen million copies between them.
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