Hey, this is turning into a dance demolition derby.

For the second straight week, the "So You Think You Can Dance" ouster wasn't because of viewers' votes or judges' views. It was because someone was injured and couldn't continue.

Last week, it was the brilliant Alex Wong; tonight, it was the appealing Ashley Galvan. This is sort of like a gladiator tournament, except that the loser isn't (to my knowledge) slain afterward.

This time, it was telegraphed from the start, because:

-- We didn't really see Ashley until the end; and

Chances are, you already knew that life isn't fair. (That's something already known to people in the Gulf Coast and in Cleveland.) For further proof, there's Alex Wong and "So You Think You Can Dance."

Here's a tip to remember when you become a contestant on "American Idol" or "So You Think You Can Dance": Make sure you do something that involves Jeff Buckley's "Hallelujah."

One year on "Idol," that song propelled Jason Castro from also-run to contender. Another year, it nudged Lee DeWyze toward the championship. And now it has brought a "Dance" triumph.