Jessica Simpson is convinced she's still single because she's too "picky" when choosing partners.
The singer was previously married to Nick Lachey, and after their divorce in 2005 she went on to date rocker John Mayer and American football star Tony Romo.
The 29 year old claims to have been single since splitting from Romo last summer (09), and admits she's since struggled to find a man.
Simpson is determined to be settled with kids by the time she reaches her 40th birthday, but fears it will be difficult because she has such high standards.
She tells Fox News, "By 10 years I would love to be a mom, I would love just to be in love and be a mom. It sounds simple but it's a lot harder (than you think). I'm pretty picky."