Kenan Thompson in the stands during a match between Columbus Crew and New York Red Bulls in a 2024 MLS Cup Playoffs Round One match at Red Bull Arena.

"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.

How to watch 'SNL' on Oct. 18

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

Viewers can also stream it the next day on Peacock.

Who is the 'SNL' musical guest on Oct. 18?

Carpenter is the show's Oct. 18 musical guest.

Who is in the Season 51 'SNL' cast?

Season 51 returning cast members include:

  • Michael Che
  • Mikey Day
  • Andrew Dismukes
  • Chloe Fineman
  • Marcello Hernández
  • James Austin Johnson
  • Colin Jost
  • Sarah Sherman
  • Kenan Thompson
  • Bowen Yang
  • Ashley Padilla
  • Jane Wickline

New cast members include:

  • Tommy Brennan
  • Jeremy Culhane
  • Ben Marshall
  • Kam Patterson
  • Veronika Slowikowska

Who exited 'Saturday Night Live'?

Heidi Gardner, Ego Nwodim, Emil Wakim, Devon Walker and Michael Longfellow were all revealed to be leaving "SNL" in August and September.

Who is hosting 'SNL' on Oct. 25

Hosts and musical guests for the subsequent weeks' episodes have not been announced yet.

Natalie Neysa Alund is a senior reporter for USA TODAY. Reach her at nalund@usatoday.com and follow her on X @nataliealund

This article originally appeared on USA TODAY: Who's hosting 'SNL' tonight? Musical guest, start time, how to watch Oct. 18 episode

Reporting by Natalie Neysa Alund, USA TODAY / USA TODAY

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