Pop star Cyndi Lauper has confirmed reports suggesting her friend Sharon Osbourne dumped food and water on Jonah Hill's brother at music mogul Clive Davis' pre-Grammy party on Saturday night (25Jan14).

The Girls Just Wanna Have Fun singer claims Osbourne confronted Jordan Feldstein at the bash after he allegedly made a joke at the expense of Sharon's son Jack, who suffers from multiple sclerosis.

Lauper tells news show Extra, "I love Sharon, but after last night I kind of love her more.

"Sharon dumped some stuff on him (Feldstein), like a plate of food and some water to wake him up, and said, 'Don't f**k with my family'."

Speaking to Extra on the red carpet at the Grammys on Sunday (26Jan14), Osbourne played coy, but admitted, "We had to make a hasty retreat (from the party)."

Feldstein previously hit the headlines late last year (Nov13) when he wed Clint Eastwood's daughter Francesca in Las Vegas. A week after the top secret nuptials, the bride began proceedings to annul the union.