Adam channeling Elvis?

Adam Lambert adjusts his attitude, as well as his look, for Motown Week -- showing Smokey Robinson more respect than he showed Randy Travis (not to mention Johnny Cash), while using his signature falsetto on "The Tracks of My Tears."

Will America love him even more without nail polish?

"I have six words for you -- one of the best performances of the night," gushes Kara, who may not be able to count but has apparently mastered the art of damning with faint praise without even meaning to.