Lewis Hamilton has written songs about his ex-girlfriend Nicole Scherzinger. The Formula One racing driver is currently working on his debut album and he admits his on-and-off relationship with the former Pussycat Dolls singer has provided inspiration for his music. However, Lewis insists he won't be making heartbreak tracks and instead he has focused on the "fun stuff" from their romance. Speaking about his album, the 31-year-old sportsman told the Daily Mirror newspaper: "I've been inspired by life - the easy stuff like relationships, that's always easy to talk about, and partying. "It's not really break-ups or none of that emotional stuff, it's usually fun stuff. It's the good stuff in relationships, the excitement when you're in something new." Lewis won the Formula One World Championship for a third time in 2015, and although he would love to release his first musical project this year, he is putting his ambition to one side to concentrate on winning the racing title for a fourth time. The 31-year-old driver - who currently competes for the Mercedes AMG Petronas team - said: "I wish I could release my album this year, but right now I'm focused on working on getting the fourth championship. "I hope at some stage people will hear it, but it's not ready yet."