It would be next to impossible for me to do any kind of classic rock week without having a song by today's band. The tough part is picking a song. After all, British rock gods Led Zeppelin have an extensive catalogue that's stuffed to the gills with great songs. One could probably write an entire blog (and someone out there probably is) about Zepp, so monumental was their impact on rock and/or roll. Ultimately, I decided today to go with one you might not know if you're not a Led Zeppelin fan.