Though the 420-friendly part of this music fest’s name is likely to grab your attention, the “groove” part is what’ll hold it, with an R&B-heavy lineup that includes Erykah Badu, Nas, the Roots, Jhené Aiko, Miguel, Kamasi Washington, Thundercat and more.
![Erykah Badu](https://media.timeout.com/images/103941981/750/422/image.jpg)
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