From chime mishaps to off-camera jokes, here's what you didn't see at the NPR offices.
The cast sang "Hold Still," "Party in My Tummy" and more silly tunes.
"I've wanted to do this my whole life," the pop star said of appearing on the web series.
The dancehall legend heated up the NPR offices with a wide-ranging set of hits from his career.
"I love NPR, guys, I'm serious -- I donate!" the singer gushed during her five-song set.
"This kind of reminds me of being in my dad's basement, being back next to the pool table," Hexum remarked.
V performed three numbers from "Layover."
The departure of Boilen, who also created and hosts All Songs Considered, follows news that two other high-level executives will soon exit the broadcaster.
The programming head, who helped make the Tiny Desk concert series a phenomenon, will exit her role at the end of the year.
"This is like a dream for me," the hitmaker told the NPR office.