Asmahan

Amal al-Atrash (25 November 1917 – 14 July 1944) ,better known by her stage name Asmahan (أسمهان Asmahān), was a Syrian Druze singer and actress. Having immigrated to Egypt in childhood, her family knew the composer Dawood Hosni, and she sang the compositions of Mohamed El Qasabgi and Zakariyya Ahmad. She also sang the compositions of Mohammed Abdel Wahab and her brother Farid al-Atrash, a then rising star musician in his own right. Hers was the only female voice in Arab music to pose serious competition to that of Umm Kulthum, who is considered to be one of the Arab world's most distinguished singers of the 20th century. 

Source: shemoonchild | wikipedia