Bill Hader, who for eight seasons was a member of the cast of Saturday Night Live, will return to Studio 8H as host on Oct. 11.
Hader earned two Emmy nominations while on SNL and received critical acclaim for his notable impressions and characters, including the 'Stefon' as well as dozens of others.
Hader can currently be seen alongside former SNL castmate Kristen Wiig in the feature film The Skeleton Twins.
Joining as musical guest is Hozier, whose "Take Me to Church" became a breakthrough single and is currently topping the Alternative Radio charts. The Irish singer's self-titled debut album will be released in October.
Saturday Night Live is produced in association with Broadway Video. The creator and executive producer is Lorne Michaels.