Surprise! Just a week after dropping 'ANTI,' bad gal RiRi is the latest performer announced for the prestigious UK awards show
Nothing's going to make Mitch Winehouse a fan of 'Amy'
James Bay, Coldplay, Jess Glynne and Amy Winehouse (!) also score key nominations
They join Adele, Coldplay and Justin Bieber
They join Adele as the announced acts at the U.K. music extravaganza