Anne Heche launched a scathing attack on her ex-husband on a U.S. talk show. The 40-year-old actress - whose bitter divorce from cameraman Coley Laffoon, with who she has seven-year-old son Homer, was finalized in March - ranted on "The Late Show With David Letterman" Wednesday after she was asked about her former partner.

She said: "Can you say lazy a*s on TV?"

Anne Heche has given birth to a boy. The star and her partner James Tupper welcomed 6 lb 12oz Atlas into the world over the weekend.

Her representative confirmed: "Mother and baby are both doing well. Anne and James are ecstatic."

Anne Heche's divorce has been finalized. The actress and Coley Laffoon - who were married for five years - reached a financial settlement last June, but have taken another nine months to agree on custody of their son Homer, seven, and the splitting of their assets.

According to Los Angeles Superior Court documents Heche must pay Laffoon a $515,000 lump sum payment. He will also get half of their assets, including $700,000 worth of stocks.