[Netizen]

In fact, stars don't even have to appear on "Idol" to enjoy a sales spike. Sales of two Keith Urban singles increased more than 20 percent after contestants performed the songs on the show, Foster said.

[Hildy]

Sales of two Keith Urban singles increased more than 20 percent after contestants performed the songs on the show, Foster said.

I was a part of that 20%. I BOUGHT Urban's CD THAT VERY NIGHT.