Will Kris Allen or Adam Lambert be crowned the eighth American Idol?

Either way, the show's fourth-ever champion will be on hand to see the results.

On Tuesday night, Carrie Underwood will return to the stage that made her famous to sing her version of Mötley Crüe's "Home Sweet Home."

The beautiful singer will donate a portion of the sales of the “Home Sweet Home” digital single to The Humane Society of the United States, which benefits abused and abandoned animals around the country.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.