3rd ‘Idol’ judge spot going to Dr. Luke

3rd “Idol” judge spot going to Dr. Luke
The pop hitmaker and former “SNL” band member is finalizing a deal to join “Idol.” Dr. Luke is responsible for such songs as Katy Perry”s “California Gurls,” “Teenage Dream” and “I Kissed A Girl,” Kelly Clarkson”s “Since U Been Gone,” Flo Rida”s “Right Round” and Kei$ha”s “Tik Tok.”