Britney Spears had nothing in common with Charlie Ebersol.

The 33-year-old singer, who recently ended her relationship with the 32-year-old producer after eight months of dating, reportedly ''drove him nuts'' because she didn't know anything about current affairs.

A source close to the former couple told US Star magazine: ''The truth is, they just didn't have anything in common. It drove Charlie nuts when he wanted to discuss current events, and Britney had no idea what he was talking about.''

The former couple were also believed to be discussing having children together and getting married shortly before their split.

A source previously said: ''Britney has said that Charlie wants to have children of his own and thinks that she would be the perfect mother for them.''

Whilst another added at the time: ''They've been moving closer at light speed, and when Charlie suggested to Jamie that he ask for Britney's hand in marriage, Jamie [Britney's father] quickly said yes.''

The 'Perfume' hitmaker also revealed earlier this year that Charlie had formed a close bond with her sons, Sean Preston, nine, and Jayden James, eight, with ex-husband Kevin Federline.

She said: ''They relate to him really well and they have fun together.

''He's refreshing to be around and really light-hearted.''