There’s something about the acoustics of a shower that magnifies raw singing talent and washes away inhibitions. Every morning American Idol rejects all across the country turn into Beyonce or Bono as soon as the water starts to flow.

If you’re going to sing in the shower, try to pick a song like “She Loves You” by The Beatles, not “Terrapin Station” by The Grateful Dead Live from The Garden ‘91. That’s because, when it comes to water conservation, a two-minute pop song is better than a slow, sandwich-laden jam session complete with musical guests and a laser light show.

The graph above (click to enlarge) shows just how much water goes down the drain during a typical shower. The numbers vary, of course, depending on the efficiency of your showerhead. And your musical aspirations.

For more information, visit the Alliance for Water Efficiency.