Favorite song to demo or test drive speakers?

My general advice is to pick songs that:

1) You know really well 2)That consistently provide a visceral reaction (goosebumps, adrenaline rush or an out of body experience, etc). 3) Has an aspect that you think your current speakers don't handle well (piano, female vocals, drums and/or cymbals, etc).

A few songs that meet some of the above criteria for me are:

DADA: "Dorina"
DIXIE DREGS: "Ice Cakes"  
EMMYLOU HARRIS & LINDA RONSTADT: "Sweetspot"
VICTOR KRAUSE: "Shine On You Crazy Diamond"
PREFAB SPROUT: "Faron Young"
STRANGLERS: "European Female"

Average White Band: "Schoolboy Crush"
Bruce Cockburn: "Peggy's Kitchen Wall"
Rickie Lee Jones: "Showbiz Kids"
Allison Krause: "New Favorite"