Serduchka 's song " Dancing Lasha Tumbai " was sung in two languages : German and English . The invented words " lasha tumbai " caused some controversy after the performance , as many people noted the phrase 's similarity to " Russia goodbye " . In early publicity appearances , Serduchka explained that " lasha tumbai " was a Mongolian expression for " whipped cream . " His statement was denied by several Mongols who gave the correct phrase on a talk show broadcast by Channel One ( Russia ) just before the Eurovision Song Contest 2007 . The Mongolian embassy in Moscow also said that " lasha tumbai " was total gibberish
Eurovision Song Contest 2007
Eurovision Song Contest 2007
Verka Serduchka