Question: what acts are on bgt the champions tonight?
Answer: Up till now, we've got salsa dancers Paddy & Nico, daring illusionist Darcy Oake, German dog enthusiast Alexa Lauenburger, dance troupe MerseyGirls, sand artist Kseniya Simonova, plus Bello and his daughter Annaliese Nock populating the final – but who were tonight's lucky pair?