Think there’s nothing funnier than YouTube cat videos? Prepare to be proved wrong. From May 19 to 25, the video-sharing website will host the first-ever YouTube Comedy Week, an event bringing together stars of the big screen, small screen, and, er, even smaller screen for a series of nightly live webcasts featuring a mix of stand-up, sketches, and musical performances. ”The future of entertainment is going [online],” says comedian and Web star Grace Helbig, whose Daily Grace channel boasts over 1.2 million subscribers. ”I think it’s very cool for traditional stars like Sarah Silverman and Rainn Wilson to be using the Internet to broaden their audience.” Both Wilson’s Soul Pancake channel and Silverman’s JASH channel — a collaborative effort with Michael Cera, Reggie Watts, and Tim Heidecker and Eric Wareheim of the cult TV show Tim and Eric Awesome Show, Great Job! — represent celebrity efforts to get into the YouTube game. (YouTube ventures could be even more lucrative soon: Uploaders to the site will have the option of charging viewers for new content.) More celebs like Vince Vaughn, Craig Robinson, Seth Rogen, Ricky Gervais, and Ben Stiller are following their lead and participating in the festivities (tune in at youtube.com/comedyweek), but the site’s standouts like Ryan Higa and the Gregory Brothers are still getting their share of the spotlight. After all, it’s their home turf.