Executive producer Ehrlich wasn’t entirely at fault for a pacing issue during the final hour of the 2016 telecast, in that he had to deal with Rihanna’s eleventh-hour cancellation and Lauryn Hill’s last-minute no-show. Indeed, Ehrlich has shown his real-time nimbleness time and again as he’s dealt with such potential calamities and worse, like the death of Whitney Houston on Grammy eve 2012. He’s the long-reigning king of high-quality live TV. Ehrlich has at least three aces in his hand for the upcoming show; how will he play his cards, starting with the opening? It’s worth noting that Adele has yet to perform Record/Song favorite “Hello” on any TV show other than her primetime NBC special last November.
Most people perform their nominated songs, so it makes sense that Adele performs Hello.
She probably won't use the Grammys to promote a new song just like when she payed dust to Set fire to the rain to perform her nominated song Rolling in the deep instead.
I think she never performs the current single at the Grammys, she performed RitD in 2012 when SFttR was slaying the charts, plus performing Hello to open the show seems right