"Saturday Night Live" will star host Louis C.K and musical guest Sam Smith on March 29. Find out where to watch "Saturday Night Live" live stream online for free this weekend.

In case you can't watch Louis C.K as host and Sam Smith as musical guest on "Saturday Night Live" on your TV, we've found how you can catch all the funniness online, via a live stream for free.

Click here for a live stream of NBC.

You can also watch an online free stream on NBC.com and Hulu, to watch video highlights and the full episodes after the show airs.

This will be Louis C.K's second time hosting "SNL." Last time C.K. hosted "Saturday Night Live," which was November 3, 2012, he got an Emmy nomination for outstanding guest actor in a comedy series.

Check out the promo video for this weekend's episode below! C.K. and "SNL" cast member Kenan Thompson banter about things like weed and cheeseburgers in the video.

Meanwhile, Sam Smith just released a new music video for his song "Stay With Me," the latest single from his upcoming debut LP, In the Lonely Hour. This weekend will mark Sam Smith's debut performance on "SNL."

Catch Louis C.K and Sam Smith on "Saturday Night Live" this Saturday, March 29 at 11:30 p.m. ET on NBC.