The 'Bleeding Love' singer - who went home empty handed despite receiving four nominations last year - is reportedly furious after being ignored in all major categories at the prestigious music honours and is now refusing to attend tomorrow's ceremony (18.02.09).
A source close to Leona - who flew into London at the weekend from America - told Britain's Daily Mirror newspaper: "Leona is making a stand and not going. She's more likely to be curled up on the sofa with her boyfriend Lou in East London than to be getting glammed up for the BRITs.
"She may even jet out somewhere on holiday."
The only nomination the 23-year-old star - who shot to fame after winning British TV talent show 'The X Factor' in 2006 - has received is in the Best British Single category for 'Better In Time'.
However, the shortlist for the category is based on sales and airplay, unlike the other honours which are decided by a special panel of industry experts.
The winner of the award is decided by public voting.
Following last year's ceremony, Leona's mentor, music mogul Simon Cowell, blasted the decision not to honour her.
He said: "I don't like the BRITs. Leona at the BRITs should tell you everything about the record business. You should recognise and celebrate success, not sneer at it, wherever the artist comes from."