This year April 20 - the stoner national holiday - falls on a Monday. Most of the events listed here take place over the 4/20 weekend.
Trade Shows/Seminars (4)
Apr. 17-19: Hempcon; Cow Palace, Daly City, CA
Apr. 17-19: Immersion 420 Business Conference; McNichols Event Center, Denver, CO
Apr. 18-20: High Times Cannabis Cup; Denver Mart, Denver, CO
Apr. 20-22: Marijuana Investors Summit; Crowne Plaza, Denver, CO
Festivals/Parties (17)
Apr. 17: Cannabliss Music Festival; Melbourne, FL
Apr. 18: Extravaganja; Amherst Town Common, Amherst, MA
Apr. 18: Global Citizen 2015 Earth Day; Washington Monument Grounds, Washington, DC
Apr. 18-19: 420 Rally; Civic Center, Denver, CO (Rick Ross headlining on 4/19)
Apr. 19: Festival 64; The 1up Colfax, Denver, CO
Apr. 18-20: Sweetwater 420 Fest; Centennial Olympic Park, Atlanta, GA
Apr. 20: 4/20 Rally; Lincoln Park, Denver, CO
Apr. 20: Smokeout Vancouver; Vancouver Art Gallery, Vancouver, BC
Apr. 20: 420 Toronto 2015: Dundas Square, Toronto, ON
Apr. 20: Orange County NORML 4/20 Fundraiser; Giovanni's Pizza, Fullerton, CA
Apr. 20: 420Fest; Factory Luxe, Seattle, WA
Apr. 20: 420 Freedom Fest; Washingtson Square Park, New York, NY.
Apr. 20: Culture Magazine 420 Party; Malone's Bar & Grill, Santa Ana, CA
Apr. 20: 420 Festival 2015; Infinity's End, Charlotte, NC (three store locations)
Apr. 20: 12th Annual SeedleSs 420 Party; House of Blues, San Diego, CA
Apr. 20: Ventura 420 Fest; Crave, Ventura, CA (benefit for ASA)
Apr. 25: The 420 Festival; High Desert Event Center, Victorville, CA
Concerts (12)
Apr. 17-18, 20: Berner; The Catalyst, Santa Cruz, CA
Apr. 18: Barrington Levy; Casselman's, Denver, CO
Apr. 18: SOJA, Nas and JBoog; Red Rocks Amphitheatre, Morrison, CO
Apr. 18: CloneAPalooza's 420 Smoker Tour; Studio Seven, Seattle, WA
Apr. 18: Indy Mojo's 420 Tent Party; Mousetrap Bar & Grill; Indianapolis, IN
Apr. 19: The Smokers Club 2nd Annual 4/20 Show; Terminal 5, New York, NY
Apr. 19-20: Method Man & Redman, Cypress Hill, Collie Buddz and more; Cervantes’ Masterpiece Ballroom, Denver, CO
Apr. 20: Snoop Dogg’s 2nd Annual Wellness Retreat, featuring 2 Chainz and A$AP Rocky; Fiddler’s Green Amphitheatre, Englewood, CO
Apr. 20: Kottonmouth Kings; Senator Theater, Chico, CA
Apr. 20: Xhibit and Mack 10; City of Angels Boxing, Los Angeles, CA
Apr. 20: Infected Mushroom; Revolution Concert House, Garden City, ID
Apr. 20: Wacka Flocka Flame; Webster Hall, NY
Comedy (6)
Apr. 17: Joe Rogan; Manhattan Center, New York, NY
Apr. 18: Bill Maher; Hult Center, Eugene, OR
Apr. 18-19: Doug Benson; Cobb’s Comedy Club, San Francisco, CA
Apr. 19: Bill Maher; Civic Auditorium, Santa Cruz, CA
Apr. 20: Doug Benson; Comedy Works, Denver, CO
Apr. 20: Rob Cantrell & Murderfist; Knitting Factory, Brooklyn, NY
Movies (1)
Apr. 20: Friday 20th anniversary screenings; theaters nationwide.
Theater (1)
Apr. 19-20: Reefer Madness in Concert; 54 Below, New York, NY
TV (1)
Apr. 19: Weed 3 and High Profits on CNN, 9-11 p, ET/PT
If you'd like to see an event listed here, send the info to events@celebstoner.com