U.S. actress Kate Hudson arrives for the Elle Style Awards in west London February 12, 2008 file photograph. Hudson graces the cover of People magazine, which hits newsstands on May 2, 2008, for the release of its "100 Most Beautiful People" list, but the single mother said she does not spend a lot of money on how she looks. [Agencies]

Kate Hudson thinks her son has the "rock star gene". The 'Fool's Gold' actress is sure her four-year-old son Ryder - who she had with her ex-husband, 'The Black Crowes' frontman Chris Robinson - will be a star when he grows up because he already loves performing.

She said: "I can see where it's going. I can see that the gene is there. He's got a rock star dad who has an unbelievable, powerful voice and he sees his father sing to thousands of people and dance around the stage. "Boy, I'm telling you, you put on music and he dances - you put a guitar around his neck and he looks like a guitar player. It's just him - he's a miniature Chris!"

The 29-year-old actress also described her son as "fantastic" and said she loves the age he is at the moment.

She added: "It's fun. My favourite age! When people say you should freeze them at that age, you know, I wish I could just bottle him right now. He's just fantastic."