A ring on Nicole Kidman's wedding finger is sparking rumors that she has married country singer Keith Urban.

The Oscar winner, who began dating fellow Australian Urban in July, was seen strolling in Boston last week wearing the ring.

Sir Elton John is auctioning one of his favourite hats to raise cash for an AIDS charity.

The flamboyant singer has joined a group of generous celebrities who are selling their possessions to help fight the killer disease.