Have you ever seen Wayne Brady work his musical magical on Whose Line Is It Anyway? If so, then you have witnessed some improv magic of the musical variety. Brady and co-stars Ryan Stiles and Colin Mochrie amazed TV fans on that show from 1998 until 2006. During those years, America witnessed a master-class of improvisation. And perhaps the shining achievement of the cast was their uncanny ability to generate hilarious songs from off the top of their heads. Who could forget thei hoe-downs, their "greatest hits" montages, and their legendary Irish drinking songs?