Another song by The Pigs....
Gold Digger, done bush style!
(with some Pussycat Dolls thrown in for good measure
These guys made it to the semi-finals, but lost out to a beatboxing act >.<
Also, something very interesting (not in the same show as The pigs) called George and Noriko, which are a duo who use a shamisen and guitar. And I swear I want to throttle Brian McFadden for referring to a shamisen as a banjo with a paint scraper >.<
George and Noriko
(this act DID make it to the finals)
ETA: George and Noriko fell just short of the grand final. Which was a shame really.