The actress who played one of Roseanne's daughters on TV would never make it on "The Voice" ... but we gotta give her props for her ballsy performance at a Brooklyn karaoke joint.
Sources tell us Lecy Goranson took to the stage just before closing time last Thursday .. when the place was almost empty. She let loose ... with an ear-splitting rendition of Nirvana's "Smells Like Teen Spirit."
Only problem was ... it kinda stunk.
Lecy was one of two actresses who played Roseanne's daughter Becky on the TV series, "Roseanne" (the other was Sarah Chalke).
At least she sings better than Roseanne.