I saw her do this live several years ago. I think it was in 2009 and she was in her ninth month of pregnancy. It was a benefit concert hosted by Seth Rudetsky for the Phyllis Newman Foundation. Kristen C and Steph J Block were the other performers. It was fantastic, and this number was the highlight, at least for me.
CZJ at opening night party for A Little Night Music, Dec 13, 2009.