Natalie Imbruglia Natalie Imbruglia So the rumour was Natalie Imbruglia had been getting friendly with Sam Branson.

But it turns out the official word is nope, it ain't happening.Sam Branson Sam Branson

Sam's dad, Virgin boss Sir Richard Branson, has put a lid on the rumours.

The Oz singer was said to have been spotted getting close to Sam, a 23-year-old heir, at a party celebrating Sam's planned mission to the Arctic this month.

But Sir Richard has stepped forward to stamp out the romantical rumours, telling World Entertainment News Network:

"Sam was very flattered to have his name attached to hers (Natalie's) but he actually already has a girlfriend.

"He’s known Natalie since he was about 15, she’s a close friend of the family.

"I saw Natalie last week and she was certainly smiling about the whole situation."

Natalie announced her divorce from husband Daniel Johns at the beginning of this year.