Nicole Scherzinger is back in the studio working on top secret new music.

Nicole Scherzinger in the studio (c) Instagram

Nicole Scherzinger in the studio (c) Instagram

The 38-year-old singer has teased her 3 million plus followers on Instagram with a photo of her listening back to her fresh tunes in the studio.

Nicole was working late into the night on the music but has spilled no details on the project to her fans.

The accompanying caption read: "Nothing I love more. #studio #music #latenight #create (sic)"

Following her judging stint on the last series of 'The X Factor', on which she mentored her act Matt Terry to victory, Nicole has been focusing on her own music again.

And while in the middle of the TV talent show, the former Pussycat Dolls star was reported to be recording a song with the Black Eyed Peas - Will.i.am, Fergie, apl.de.ap and Taboo - last year.

A source at the time: "Nicole met the band members and was laying down vocals until the early hours. She was singing about 'feeling the fire' and 'wanting her way like a holiday'.

"Taboo and apl.de.ap went into the recording booth to do their bit first, then Will and Nicole went in before she went back in with Fergie."

Nicole let slip in 2013 that she was originally supposed to be part of the band in the early 2000s before Fergie joined as the female vocalist.

Will.i.am - who is a mentor on 'The Voice UK' - and Nicole have a lengthy friendship and he helped her become a member of the Pussycat Dolls.

Nicole went on to have a solo career after the Pussycat Dolls disbanded in 2010, releasing a solo album 'Killer Love' which featured her number one hit 'Don't Hold Your Breath'.