Winehouse sues former mom-in-law for selling love letter

London (ANI): Singer Amy Winehouse has sued her former mother-in-law for selling a love letter she had written to her ex-husband Blake Fielder-Civil. The note was apparently written when her former flame was jailed for assault and perverting justice.

Furious, the Grammy Award-winning singer has reportedly filed for copyright infringement, and asked for 50,000 pounds compensation. "Amy was furious the private letter was used to make money," the Sun quoted a pal as saying.

However, no date has been set for a hearing as yet. Winehouse had married Blake in 2007, but they divorced in July this year.