Johnny Depp has invited a host of his famous friends to spend New Year's Eve (31.12.14) with him in the Bahamas.

The 51-year-old actor has sent out invitations to many of his closest pals, including Steven Tyler, Marilyn Manson and Helena Bonham Carter and her partner Tim Burton, to ring in 2015 with him and his fiancée Amber Heard on his private island in the Caribbean.

The usually low-key star's bash - held at Amber Beach, which he named after his partner - has sparked speculation among his guests that the party may in fact turn into a surprise wedding between Johnny and Amber, 28.

A source told The Sun newspaper: ''Johnny is normally very low key, so the big New Year party came as a surprise. He's invited most of his closest friends and their families to join him on his island. The highlight will be a big party.

''It could be a straightforward bash but friends have wondered if it could be a ruse to have a wedding without a big fuss.''

The couple always intended to tie the knot at Amber Beach, but no definite date has ever been set.

Johnny and Amber confirmed their engagement in January after less than two years of dating and threw a party to celebrate their betrothal in March.

The 'Lone Ranger' star was previously in a long-term relationship with Vanessa Paradis, with whom he has two children, daughter Lily-Rose, 15, and son Jack, 12.