"It's Vialli"
From TheChels.info - The Chelsea Football Club Wiki
A song celebrating Gianluca Vialli's goal against Manchester United at Old Trafford in November 1996.
To the tune of "Amore".
When the ball hits the back of the Old Trafford net, it's1 Vialli,
When his goals light the sky there's a tear in my eye, oh Vialli!
Alternative second line:
He nutmegged the Dane and poor Fergie's in pain, it's Vialli!
1 Alternatively, "that's Vialli"