Broadway Unplugged

Side Show Revival Stars Erin Davie and Emily Padgett Lead Broadway Unplugged Cast
The actresses will reunite to perform a pair of famous tunes without microphones.
Cheyenne Jackson, Natalie Toro, Orfeh, and More Belted Their Hearts Out at Broadway Unplugged
Broadway favorites performed musical numbers from such shows as Les Miserables and Man of La Mancha, sans-amplification.
Scott Siegel "Unplugs" Broadway
MTV does it. VH1 does it. But Broadway did it first.