In this week's Glee, the kids sing mashups of Carole King and Alanis Morissette songs—and since Carole King's songbook is on Broadway and Alanis' biggest album will soon be adapted for the stage, that's as close as we get to any showtunes. Check out how "Jagged Little Pill" and "Tapestry" work together below! 
SOURCE: Playbill at 02:40PM on January 17, 2015