The 23-year-old new mother was quickly evacuated to Mayanei HaYeshua Hospital, where she gave birth to a healthy baby girl.
"I wasn't having contractions, so I didn't think I needed to be resting," said Ziskind, who asked not to reveal her picture for reasons of modesty.
"At first I was disappointed that I didn't get to see the show because I was going into labor, but now I am happy because I have an amazing daughter," she said.
Ziskind, an ultra-Orthodox woman from Bnei Brak, spoke of her adoration of the 23-year-old pop star.
"I'm a modern Haredi woman, so be surprised, there are a lot of Haredi women who like Justin Bieber. When I bought the tickets I was sure I would give birth before the concert or after it, but I never believed I would give birth during the concert. If I had had a son, I would have named him Justin, but I had a girl and we named her Hadar," said Ziskind.