"Saturday Night Live" is set to air its third episode of Season 51 this weekend a first-time host making an appearance to the iconic late-night comedy show.

Singer Sabrina Carpenter is set for her "SNL" hosting debut and will be pulling double duty as the musical guest.

The episode will air one week after former cast member Amy Poehler hosted the show on Oct. 11 and Role Model performed as the musical guest.

Here's what to know about the Oct. 18 show, including how to watch it.

The Oct. 18 "SNL" episode will be available to watch live on NBC at 11:30 p.m. ET/8:30 p.m. PT.