Blimey! I'm not really interested in Sergei Lazarev but i just listened to "Earth Song" as I wondered if it was a Michael Jackson cover, and it is!
It's the only Micheal Jackson song I like!
The song doesn't sound much different, just Sergei's voice isn't high pitch and this version is a bit more acoustic than electronic (hearing the drums etc.)
EDIT: The rest of this album sounds pretty gay
