Dec 14, 2008, 11:00 GMT
Will Young spied on his neighbour having sex with a sofa.
The British pop star discovered the man's bizarre fetish after going up to the roof of his London home shortly after he moved in.
He told fans during his concert at London's Roundhouse venue on Friday (12.12.08): "When I first moved into my house a few years ago, I climbed onto the roof to have a look at the view and I could see this guy who looked like he was having sex on his sofa.
"So I texted my friend, you know, 'Come up and have a look at this', and I sat and watched for a bit. And then he got up and there was nothing there. He'd been humping the sofa.
"I won't be going round and sitting in that chair, you don't know what he's done to it!"
Will was reminded of the unusual incident after a fan threw a snowman onto the stage. Upon noticing a lipstick mark on it, he joked: "Someone's been lonely!"
The 29-year-old singer ended his 2008 'Let It Go' tour with a crowd-pleasing set which included tracks from across his six-year career, including early favourites 'You and I' and 'Your Game' and last single 'Grace'.
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