Ace of Cups’ Denise Kaufman and Mary Alfiler want you to get out and vote, so much so that they’ve released a new video to the tune of “Please Mr. Postman.”

The clip also features Tora Smart (Kaufman’s daughter) and Eli Smart (Kaufman’s grandson), as she sings “Don’t wait a minute, wait a minute/ Deliver my ballot, I’ve gotta be counted.”

Kaufman was born and raised in San Francisco before moving to Palo Alto in 1962 and frequenting local spaces like The Tangent and Dana Morgan Music, where Bob Weir and Jerry Garcia were also known to appear. She joined up with Ken Kesey and his Merry Pranksters in 1965, eventually connecting with Weir at the Grateful Dead’s first show under that now-legendary name, at the first large, public Acid Test on December 4 of that year. Ace of Cups ended up spending time with the Dead in San Francisco, and even opened for Jimi Hendrix.

Read Relix‘s track-by-track interview with Ace of Cups here.

Watch below: