if Lady Gaga really got up and left like that it was a little immature. U can't expect to win every award ur ever nominated for lol.
She only left after Adele won. It's just Paul performing some song now anyway. Most people leave during that time. The last performance is mainly to fill time, just like Arcade Fire last year.
And it turns out all the hand wringing over her sweeping was just people being pressed. Adele the artist and 21 the album brought together the rarest qualities to guarantee one of those maybe once a decade clean sweeps.
i guess they are still counting.....i am doubtful whether they even watched grammies...!! 
