Sara Gilbert What's Up With Your BS Answer

EXCLUSIVE

Either Sara Gilbert was trying to be nice Friday night in Hollywood ... or like the rest of the country, she only knows one 4 Non Blondes song.

In case you missed it -- it's ok, we forgive you -- Sarah's wife Linda Perry announced this week she was reuniting her 90's band for a charity benefit ... even though they only had one hit -- "What's Up."

We asked Sarah what her favorite Non Blondes song was and her answer is questionable.

Hey, hey, hey, hey.