Nicole Scherzinger's recent split from long-time boyfriend Lewis Hamilton has left him struggling to cope.
The X Factor judge's racing driver ex has spoken of his heartbreak at her no longer being his other half to The Sun.
He said: "I wear my heart on my sleeve and that gets me in trouble a lot of the time and I generally find it very, very hard to fight my emotions. I'm trying my hardest to be positive but I'm going through a really, really tough time at the moment with the loss of someone really, really special in my life.
"My world's turned upside down, but I have a job to do. I need to keep myself occupied and busy because otherwise my mind will wander and that makes the time a lot harder. I need to keep myself really busy and make sure the time goes by quickly."
The pair first got together five years ago but had previously split and been reconciled.
In a recent audition for the new series of The X Factor when a contestant sang a self-penned song about heartbreak, Nicole commented about the topic: "It sucks doesn't it? Really sucks. It pulled on my heartstrings."