Alright, so do you like the Japanese singing group Vocaloid?
KSillyver
Miku sings "ievan Polkka"
Vocaloid (Bokaroido), is a singing synthesizer. Its signal processing part was developed through a joint research project led by Kenmochi Hideki at the Pompeu Fabra University in Spain in 2000 and originally was not intended to be a full commercial project. Backed by the Yamaha Corporation it developed the software into the commercial product "Vocaloid". The software enables users to synthesize singing by typing in lyrics and melody. It uses synthesizing technology with specially recorded vocals of voice actors or singers.
Here's a few of the singers! (Their last names might come first because that's how it is in Japan. For example, you may see "Hatsune Miku", but Miku's name will still be Miku; not Hatsune. Sorry if there's any confusion!)

Thanks for reading ^-^