Elton John slams Madonna

Elton John slammed Madonna as a "miserable cow" after she failed to attend his pre-wedding cabaret on Monday night, according to The Daily Mirror.

The Candle In The Wind hitmaker, 58, reportedly hit out at the pop superstar during a speech thanking guests and performers for attending the lavish London bash.

John will exchange vows with longterm love David Furnish later today, taking advantage of new British laws affording gay unions the same legal protection enjoyed within traditional marriages.

John reportedly said: "Madonna, the miserable cow, wouldn't do it. David asked her three times."