Previously unreleased, “20 Questions” first appeared as #13, D2 on Beastie Boys Anthology: The Sounds of Science, released 11.23.1999. It’s a duet between Adam “MCA” Yauch and Miho Hatori of Cibo Matto.

While we were working on Hello Nasty I was listening to a lot of bossanova. Mario [Caldato] is originally from Brazil and he knows quite a bit about 60’s Brazilian music. He turned me on to a number of things, but in particular, I couldn’t stop listening to both Jorge Ben and Antonio Carlos Jobim. At some point when I was listening to Jobim’s “Aguas De Marco” I decided that I wanted to write and record a couple of bossanova songs. I guess that’s kind of like saying “I was watching Michael Jordan play basketball and I decided that I want to play for the Bulls.” Sure you do. [“Twenty Questions” was] started in the Dungeon and then finished over at RPM. Miho from Cibo Matto has an amazing voice, and she too is in love with old bossanova music. She came into the sudio toward the end of our recording and put down some vocal tracks.

—Adam Yauch, in the liner notes for The Sounds of Science (1999)