Kelly Clarkson has held the title of the "most successful American Idol recording artist" for a very long time. But things aren't going so well for Kelly who has cancelled her summer tour due to poor ticket sales.

Kelly posted the following statement on her website: "In the craziness of the music business, performing is what I look forward to doing the most, so it is really disappointing to me to have to tell you that I won't be coming out to tour this summer ... But I promise you that we're going to get back out there as soon as is humanly possible to give you a show that will be even better."