Madonna has joined Prime Minister Binyamin Netanyahu and his family in lighting Shabbat candles and reciting a blessing together with Netanyahu's wife Sarah.
A statement from Netanyahu's office said the singer spent two hours at the Netanyahu home on Friday evening.
Although not Jewish, the 51-year-old pop star claims a special bond with Israel and Jewish tradition.
She's been exploring Kabbalah, a form of Jewish mysticism, for more than a decade and has taken the Hebrew name, Esther.
She arrived in Israel on Sunday and performed in Tel Aviv on Tuesday and Wednesday.
She was wearing a short-sleeved black dress as she left the heavily guarded Netanyahu home Friday.