Bill Hader and his Saturday Night Live colleagues were early fans of Adele, recalling her impressive debut performance on the show in 2008. The documentary "Ladies & Gentlemen… 50 Years of SNL Music" features behind-the-scenes footage of Adele seeking guidance on how to carry herself during promos. Adele's appearance on SNL helped catapult her to stardom in the United States, with her album "19" reaching the top of the iTunes charts the day after the episode aired. The documentary also includes reflections from Adele and Dua Lipa on the impact of the SNL stage on artists' careers.
Source: https://ew.com/bill-hader-recalls-everyone-stopping-work-at-snl-when-adele-rehearsed-8784324