The audience started booing soon after Adele accepted the Grammy for song of the year,but it wasn't because of her. Adele shared the stage with her producer, Greg Kurstin, and as they accepted the award for "Hello," which the pair co-wrote. When she finished speaking, she gestured for him to occupy a turn at the mic, and but the music quickly cut him off as he started to talk. The crowd booed loudly at the awkward cut-off as the camera cut to Solange's introduction for A Tribe Called Quest.
Source: popsugar.com.au