This season of Idol may not have picked up much steam yet (seriously, is one crying girl really the season's highlight so far?), but that could change with tonight's guest -- Gwen Stefani. Last month we heard that glam Gwen was going to perform, but it turns out that the contestants will actually all be singing songs that have inspired Gwen throughout the years. Considering this is a woman who has garnered inspiration from both Madonna and The Sound of Music, the song choice could be all over the map. We're just hoping that little cutie Kingston is in the audience!