It's 4:20 somewhere, but it's 4/20 everywhere today since it's April 20. Pot jokes. Marijuana. Weed. Stoners.

Comedians know a lot about that. And they'll be joking about it today, obviously.

At 2 p.m. Eastern/11 a.m. Pacific (and other applicable time zones), Comedy Central's Jokes.com and Atom.com have joined forces with WitStream.com for "The #ComedyShow" with co-hosts Michael Ian Black and Steve Agee. It's an hourlong online affair, with jokes, videos and fan participation encouraged via the hashtag #ComedyShow.

"There is nobody less qualified to speak about marijuana than me, which is why I am so excited to be co-hosting this event with true stoners Steve Agee and Morgan Murphy,‚Äù Black said. Agee added: "I'm more than capable of co-hosting this event – I have a medical marijuana card. That makes me a professional."

Confirmed participants include Owen Benjamin, Eli Braden, Rob Delaney, Rachel Feinstein, Joselyn Hughes, Al Madrigal, Shane Mauss, Morgan Murphy and Brendon Walsh.

On WitStream, you can follow #ComedyShow along here.

At 4:20 p.m. Pacific (do the math for your time zone), Yowie.com will host "The Back Room" with Matt Besser and guests including Jimmy Dore, Steve Agee, Paul Rust, Colton Dunn, Scott Rogers and Kenny Stevenson.

If you prefer your 4/20 jokes live and in person, then in NYC, Jon Friedman's "The Rejection Show" offers a specially-timed edition at the Upright Citizens Brigade Theatre.

And the Gramercy Theatre hosts Rob Cantrell and Tony Camin in "The Marijuana-Logues" tonight.

If you're on the fence about watching live vs. online, the UCB's Hollywood venue offers its own treats with "420 Funny: A Very Pot Friendly Variety Show," hosted by Harris Wittels and Armen Weitzman, with comedy, films and other funny stuff courtesy of Matt Besser, Aubrey Plaza, Birthday Boys, Spobra, Jon Daly, David Harris and a video from Rob Schrab. You can watch it online, too, via Yowie.

Check your local listings for 4/20-themed shows near you.