By Jessica Earnshaw
The hitmaker was criticised after posting a snap of her Native American headdress on both her Twitter and Instagram page on Saturday evening.
The blonde beauty captioned the picture, which saw her eye-catching red and striped feathers in her hair: "Tiger Lily is out to play tonight for final BDAY celebrations with @joemowles… Thanks to @emmabrizzie #MAC #cowboys #indians."
However followers were quick to respond. One user wrote: "Disgusting. Ignorance at its best right here", and: "Treating genocide as your birthday theme? Come on.
Another Twitter fan added: "Please delete this, this is offensive," while another sarcastic comment read: "Wowww cuz dressing up as people who have been wipped out is soooo cool.
"Why don't you dress up as the slaves next! Let's have a slave themed party!"(Sic)