Rihanna shares topless photo after Halloween bash

The 24-year-old 'Umbrella' hitmaker's picture was captured "The morning after! Hello November," showing off a bit of her new Isis chest tattoo, which she had etched in memory of her late grandmother, reported the Huffington Post.

Rihanna's ex-flame Chris Brown also attended the event dressed like a terrorist.

The "We Found Love" singer wore a 'weed princess' costume and she was not the only celebrity to have the green idea. Pop sensation Lady Gaga also wore a Halloween costume dressed up as a cannabis plant.

Lindsay Lohan and Paris Hilton also attended the party.