Yes, those are lyrics from the Sven Nys theme song you'll hear in this video. I do not know weather to laugh, vomit or sing along. There is a GREAT article in last month's Cycle Sport magazine of Sven's "Supporter Club". This is a video from the same club a local TV station did.
"Sven is de Top! Oh yeah! Blah blah bla biddy blah!"