GLEE: Sue (Jane Lynch) directs the Cheerios! squad in "The Power of Madonna" episode of GLEE airing Tuesday, April 20 (8:59 PM-10:01 PM ET/PT) on FOX. ©2010 Fox Broadcasting Co. Cr: Michael Yarish/FOX

Tonight’s Glee episode features the cast performing Madonna songs - which was teased last week with the Sue Sylvester (Jane Lynch) performing a version of Vogue. Lynch explains why the Material Girl is a big influence on the manipulative Sue Sylvester. (CLICK ON THE MEDIA BAR BELOW TO HEAR JANE LYNCH)