Harry whistled in support of Billie when she took to the stage (Image: YOUTUBE)
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A fourth joked: I want someone to look at me the way Billie looks at Harry.
The 19-year-old, who dominated last year s ceremony, performed on top of a car which appeared to be submerged in the studio floor.
She has already won best song written for visual media, for her Bond theme No Time To Die - which is set to be released later this year as Daniel Craig s last hurrah as 007.
Harry too is nominated for best pop solo performance - which he later won - best pop vocal album and best music video at this year s ceremony, but it wasn t just his voice that became the centre of attention tonight.