Cage the Elephant had special help from the Foo Fighters' Dave Grohl in this live performance of "Aberdeen." When CTE's drummer was sadly hospitalized due to a burst appendix, Grohl jumped in and rocked the sticks in his place. Talk about making lemonade -- the unexpected addition made for an insanely energetic live performance and, we're sure, a surprised and excited audience. We also have to note that frontman Matthew Shultz killed it on lead vocals, as always. Check it out.