News Summary: YouTube to showcase a week of comedy

YouTube to program a week of comedy across its video site, first in a series of theme weeks

FOR LAUGHS: For a week in May, YouTube will turn into the biggest open mic on the planet. The online video company is announcing the YouTube Comedy Week, a seven-day cyber extravaganza designed to showcase some of the best comedy across its expansive video platform. From May 19-25, YouTube will be overrun with punch lines, sketches, stand-up routines and — hopefully — a lot of laughs.

LIVE FROM CALI: Comedy Week will kick off with a global live stream from Los Angeles' Culver Studios. Throughout the week, new episodes will debut from some of YouTube's most popular channels, comedians will perform and comics will curate lists of their favorite videos.

A LIST: Among those participating are Sarah Silverman, Rainn Wilson, Michael Cera, Vince Vaughn and Seth Rogen. There will be new videos from Andy Samberg's Lonely Island troupe. Popular comedy destinations with channels on YouTube like The Onion, Nerdist, College Humor and Funny or Die will join in.