t-pain npr

*T-Pain is the latest to perform under NPR’s “Tiny Desk Concert” series, which features musicians delivering stripped-down sets inside the public radio organization’s offices in Washington, D.C.—which meant no auto-tune.

According to the LA Times, NPR’s Frannie Kelley convinced T-Pain to go without his vocal-software companion.

“This is weird as hell for me,” he said at the beginning of his three-song set.

Backed only by a keyboardist, he performed re-arranged versions of “Buy U a Drank,” “Up Down (Do This All Day)” and “Drankin’ Patna.”

Watch the man get his serious croon on, below: