Ke$ha went for full-on production last night when she brought her new song "Die Young" to Conan. Flanked by four male dancers who doubled as percussionists, the singer shimmied and strutted through a bank of smoke while live musicians in the shadows fleshed out the sound. Befitting the live-in-moment theme of the tune, from Ke$ha's new album Warrior, a burst of confetti at the end underscored the point.