United Kingdom, Feb. 18 -- Doechii has branded critics of her Grammy Awards performance "stupid as hell".

The 26-year-old singer gave a dazzling performance of her tracks 'Catfish' and 'Denial is a River' - which included acrobatics, a costume change, and multiple dancers - at the ceremony earlier this month but she's been dogged by claims she was lip-syncing, so she's taken to TikTok to shut down the rumours.

She screamed and said: "I can't possibly get on here and say this calmly or nicely: y'all are stupid as hell.

"So slow! That is my DJ's voice picking up on the lines that I can't say because I'm doing A SOMERSAULT.

"That entire performance was live!"

And Doechii revealed she was "sick as a dog" at the time but still battled thr...