Christina Aguilera has hinted that she's ''putting the finishing touches'' to her album.

The 'Fighter' hitmaker has taken to her Twitter account to share a picture of herself sat at her piano while writing the lyrics for her first studio album since 2012's 'Lotus', and has teased that it will be personal record as she said it's from her ''heart''.

Alongside the professional photo, she wrote: ''Finishing touches to my heart (sic).''

Aside from sharing a picture on her Instagram account last year of her taking pen-to-paper in a mystery recording studio, the 36-year-old pop superstar last spoke of a new record in 2014 when she revealed she'd teamed up with Pharrell Williams - who she worked with on the American version of 'The Voice' - and was very keen on one of the tracks he'd had suggested.

She previously said: ''During my pregnancy, I had a meeting with [Pharrell] and just connected on where I want to take the next album. And we started talking music, and he has one song in particular that I love.''

The 'Beautiful' singer said she wanted to ensure her record is ''genuine'' before she releases it and is determined to ''pour'' her heart into it.

Christina - who has two children Max, nine, and two-year-old daughter Summer from two separate relationships - said previously: ''I just have to make sure it is right and it is genuine and heartfelt. I'm very excited to pour my heart out into this record fully.''