Washington, Mar 26 : Beyonce Knowles’ representatives have slammed her critics for suggesting that the singer has gained weight.

Their reaction came after online critics questioned the singer’s curves in the photographs clicked in NYC on March 8, for her ‘I ... Am tour’ in a Thierry Mugler couture dress.

They insisted that it was her dress, originally designed for Jerry Hall, which made her look curvy.

"This is not a weight-gain issue," Us magazine quoted a representative for Beyonce as saying.

The rep added: "Beyonce is in the best shape of her life. The exaggerated hips are a design element of a truly couture dress. Beyonce has always loved this dress." (ANI)