April 20 Surreal’s 9th Annual 420 Event Featuring Funk Trek, Mars Black, E.Babbas and more The Waiting Room, 6212 Maple St. 9 p.m., $8, onepercentproductions.com Smokers, rev up your, bongs. It’s that time again. For the ninth straight year, local emcee Zach “Surreal” Hennings will host his “420 Event,” an event where smokers of all walks of life can celebrate the mighty marijuana plant and revel in its medicinal qualities. (If you buy that, then you’re an idiot or probably high.) Anyway, in the past, the annual weed extravaganza has featured national artists such as DJ Rob Swift of the X-ecutioners and RA the Rugged Man, but this year is a little different. “I wanted to mix it up a bit this year. I wanted to bring the hip-hop but being open to other genres that celebrate 4-20,” Hennings exclaims. “A lot of newer bands will only play with acts that are similar, and I can appreciate that, but if a theme is involved like 4-20 or Halloween, people are more willing to break out of their mold.” This year, catch Funk Trek, Lighting Bug, MO Caiaus, Mars Black, DJ E.Babbs and more for a smokin’ good time.