Leading up to the Sunday, February 16, event, NBC has announced the dozens of stars who will making appearances, including several SNL alum. Hader was on the show from 2005-2013 and portrayed the fan-favorite Stefon, so his absence from the list of attendees was noteworthy to fans, who expressed their frustration on social media.

We [will] have about 450 people in the studio, which is essentially about 200 people more than we would normally have.”