How to watch ‘SNL’ tonight. See host, musical guest for Jan. 31 show.

“Saturday Night Live” is all new this weekend, with an Emmy-winning actor making his long-awaited hosting debut.

Following a star-studded roster of hosts and musical guests, the live comedy show is keeping the momentum going by bringing in Emmy and Golden Globe-winning Swedish actor Alexander Skarsgård and Grammy-winning musician Cardi B for the Jan. 31 show.

The “Big Little Lies” star is making his “SNL” hosting debut alongside Cardi B, who is returning to perform years after her musical guest debut in April 2018.

In a teaser ahead of the show, “SNL” cast members said Skarsgård was “already bringing so much to the table.”

Various examples of Skarsgård’s helpfulness (tallness), particularly in terms of reaching for things in high places, have been highlighted.

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Here’s what to know about the Jan. 31 episode of “Saturday Night Live,” including how to watch.

Who is hosting ‘SNL’ tonight? And who is performing?

Alexander Skarsgård is the host, and “WAP” rapper Cardi B is the musical guest for the Jan. 31 show.

‘SNL’ Season 51 cast

From breakout star Marcello Hernández to veteran comic Kenan Thompson, cast members of “SNL” Season 51 include:

Tommy Brennan
Michael Che
Jeremy Culhane
Mikey Day
Andrew Dismukes
Chloe Fineman
Marcello Hernández
James Austin Johnson
Colin Jost
Ashley Padilla
Kam Patterson
Sarah Sherman
Veronika Slowikowska
Kenan Thompson
Jane Wickline

Where to watch ‘SNL’?

New episodes of “Saturday Night Live” air at 11:30 p.m. ET / 8:30 PT on NBC, with episodes streaming the next day on Peacock. Old “SNL” episodes, specifically sketches, can be streamed anytime on Peacock.