Newly single Demi Lovato gives marriage advice on Twitter

Pop singer Demi Lovato has dished out a bit of marriage advice to her female followers on Twitter.

Demi, who was recently dumped by boyfriend Joe Jonas (reportedly over the telephone), tweeted the advice over the weekend.

The 17-year-old said: “Ladies, NEVER sign a pre-nup. It just shows that the opposite sex doesn’t expect you to last.”

Wise words, or is Demi too young to know what she’s talking about?