Music
Rex Features
According to The Sun, the popstar's new track 'I Think I'm In Love' is about her romance with the F1 driver.
"It is a very personal song. It's very in-depth and emotional, a real song that I know is going to connect with people," she said.
Scherzinger's tune is rumoured to be on the tracklist for her band's impending Doll Domination album.
A source commented: "She has only just finished it but it could be rushed on to the new album.
"There are reports on the internet claiming to have the tracklist but so far only about seven songs are definite. Nicole is really proud of this new one and they could squeeze it on."
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