American Idol announced its complete roster of season eight finalists last night.

But there was a twist!

Either the quartet of judges forgot how to count to 12 - the customary number of finalists each year - or Simon, Randy, Paula and Kara simply couldn't deprive viewers of the four singers that have now joined the previously-announced final nine.

Yes, that makes for a total of 13 finalists.

Who did the judges vote through last night? Read our American Idol recap and find out!

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