Singer Jessie Ware told us her life hasn't changed since she became a star - she says she still gets the Tube and cooks her boyfriend's dinner.
She has been nominated in the best breakthrough artist and best female artist categories.
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Paramedics were on standby outside the police cordon as armed officers stood by the property.
A team of researchers has taken samples from the ten busiest London Underground lines to work out which are the dirtiest.
The action comes on top of an emergency timetable which has seen hundreds of trains a day being axed.