Umar (Arabic: عمر ابن الخطاب, Transliteration: `Umar ibn Al-Khattāb, Umar Son of Al-Khittab, c. 586–590 CE– 7 November 644), also known as Omar, Farooq the Great was the most powerful of the four Rashidun Caliphs and one of the most powerful and influential Muslim rulers in history. He was a sahabi (companion) of the Islamic prophet Muhammad. He succeeded Caliph Abu Bakr (632–634) as the second Caliph of Rashidun Caliphate on 23 August 634. He was an expert jurist and is best known for his justice, that earned him the title Al-Farooq (The one who distinguishes between right and wrong). Under Umar the Islamic empire expanded at an unprecedented rate ruling the whole Sassanid Persian Empire and more than two thirds of the Eastern Roman Empire. His brilliantly coordinated multi-prong attacks against the Sassanid Persian Empire resulted in the conquest of the Persian empire in less than two years. His legislative abilities and firm political and administrative control over a rapidly expanding empire marked his reputation as a great political and military leader. It was Umar, who for the first time in 500 years since their expulsion from the Holy Land, allowed Jews to practice their religion freely and live inside Jerusalem.^{[citation needed]}

Mehdi Hassan Khan (Urdu: مہدی حسن خان ) is a Pakistani ghazal singer and a former playback singer for Lollywood. He is famously known as the 'King of ghazal' (Urdu: شہنشاہِ غزل). He has ruled the Pakistan film industry along with Ahmed Rushdi. He was honoured with Tamgha-e-Imtiaz, Pride of Performance and Hilal-e-Imtiaz by the Government of Pakistan, and Gorkha Dakshina Bahu by the Government of Nepal.

Mehdi Hassan was born on 18 July 1934 in a village called Luna in Rajasthan, India into a family of traditional musicians. He claims to be the 16th generation of hereditary musicians hailing from the Kalawant clan of musicians. Mehdi Hassan had his musical grooming from his father Ustad Azeem Khan and uncle Ustad Ismail Khan who were both traditional Dhrupad singers. Hassan started to perform at a young age and the first concert of dhrupad and kheyal with his elder brother is reported to have been held in Fazilka Bungla, near present DC House (1935) of Undivided Punjab. After the Partition of India, 20-year-old Hassan and his family migrated to Pakistan and suffered severe financial hardships.