Chart-topping solo star Nicole Scherzinger graces the cover of next month's Glamour magazine and tells all about the strains of her long-distance relationship. 

The 'Don't Hold Your Breath' singer has been with Formula 1 driver, Lewis Hamilton, for some time now and says it's "hard" being apart from each other, but it's a curse of their busy schedules and she often feels bad when she can't make a race:

"As much as I support Lewis, he sees other drivers' girls with them the whole time."

June's edition of Glamour will be on sale from May 5 and Scherzinger stuns on the cover in a figure-hugging purple dress. Watch a recent interview with the hitmaker, in which she addresses her relationship with the other Pussycat Dolls, here: