April 23, 2014 1:09 PM EDT

There are only a handful of people in the world who can get Beyoncé to appear make a guest appearance on one of their songs: Her husband Jay Z, her sister Solange and the mysterious producer known as BOOTS.

BOOTS, who helped Queen Bey shock the world when she dropped her surprise visual album Beyoncé, has just released “Dreams,” the closing track on his forthcoming mixtape, WinterSpringSummerFall — and it features guest vocals from none other than Beyoncé.

Bey comes in at the end of the track with a soulful verse before sweetly singing the chorus: “All my life, I’ve been dreaming of you.”

Besides Beyoncé, BOOTS’ 16-song mixtape also features appearances by Shlohmo, Jeremih, Kelela, Margot and “hidden” guests.

If the chance to revel in another Bey n’ BOOTS collaboration isn’t enough to get you download the track, maybe this will: Sales of the song will benefit the charity Day One, according to BOOTS’ Facebook page. “Day One is the only organization in New York City solely devoted to the issue of teen dating violence,” he said. “Every cent made from this song will go directly to Day One.”

Listen here:

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