<Li> Features album version of "Smells Like Teen Spirit". </Li> <P> UK CD single (DGCTD 5) </P> <Ol> <Li> "Smells Like Teen Spirit" (Cobain, Grohl, Novoselic)--4: 30 </Li> <Li> "Drain You" (Cobain)--3: 43 </Li> <Li> "Even in His Youth" (Cobain, Grohl, Novoselic)--3: 03 </Li> <Li> "Aneurysm" (Cobain, Grohl, Novoselic)--4: 44 </Li> </Ol> <Li> "Smells Like Teen Spirit" (Cobain, Grohl, Novoselic)--4: 30 </Li>

Why did they sing smells like teen spirit in pan