This year’s annual Mile High 420 Festival in Denver, Colorado is set for, you guessed it, 4/20, and they’ve announced a lil’ treat for all the Rocky Mountain stoners out there: the festival will be headlined by Lil Wayne, Lil Jon, and The Original Wailers, among others, according to a press release sent out on Thursday.

The Lil guys are scheduled to hit the main stage together at, you guessed it, 4:20 pm. Other acts on the mainstage will include Inner Circle, bluegrass all-stars WhiteWater Ramble, and Taylor Alexander. The festival will also feature two other stages, one mostly for short DJ sets, and another for stand-up comedy. Admission is free.

But wait! Don’t start counting chickens just yet. Though Weezy is scheduled for a fire set on the stoner holiday, there is a precedent of things going south with Lil Wayne cannabis festival concerts. He is like the Macbeth of weed-themed festivities. The last time Tune was scheduled for the Mile High Festival (in 2016, along with Wiz Khalifa), the event was called off due to inclement weather conditions.

There was also that Cannabis Cup incident in San Bernardino, California, when Wayne left the stage ten minutes into his performance. “You guys are too mellow. I’m from the south. We turn up there,” the rapper said at the time. “Don’t you ever call me to do this shit again. Ever. Don’t you, ever, ever, ever ask me to do this shit again.”

The noted sizzurp fan is, in fact, known for his walkouts, having done so during performances in such diverse locations as Florida, Virginia, and Italy.

The volatile, versatile rapper isn’t the only unknown quantity in the upcoming festival. Mile High operations have apparently changed hands since last year. The Cannabist reports that Miguel Lopez, the organizer of the event in previous years, was banned by the city from hosting this year because of multiple city ordinance violations involving trash, food service, and security.

The event will this year be organized by Euflora, a chain of cannabis dispensaries in the Denver area. The new operators have changed the mood of the festival. Last year the event was in part a political rally and protest, but this year Euflora promises it will be a celebration instead.