Troupe sex for Kanye West's new album launch party

London, Oct 17 : Kanye West caused a stir at the launch party of his eagerly anticipated album '808s and Heartbreak' by inviting 40 naked women to attend.

The rapper unveiled the album - due to be released in November - at a lavish bash at Los Angeles' Ace Gallery, but guests were stunned to find the room full of nude women wearing masks.

"After waiting in an area with an open bar and a DJ, we walked up a driveway illuminated by fluorescent lights to a darkened room where we saw 40 nude women. Most of them were wearing strange masks made of wool," the Sun quoted a source, as saying.

"They stood in the middle of the room - black girls at the front and white girls at the back. Then the entire album played without any introduction or explanation," the source added.

West insists the women were part of an arranged art show he masterminded with Italian artist Vanessa Beecroft.

ANI