Scottish singer K.T. Tunstall has snubbed the chance to duet with American Idol star Katharine McPhee - because she hates reality TV pop stars.

McPhee performed Tunstall's hit Black Horse and the Cherry Tree during her run to the program's season five finale and admitted she would love the chance to record with her idol.

But Tunstall says, "I'm not a big fan of the reality TV-show-pop-star thing.

It chokes the market in terms of young original talent. There's a strong element of karaoke in pop TV shows. I like artists who fire my imagination."

(This news article provided by World Entertainment News Network)