The Al-Qaeda rapper with a 'Barry White growl' who uses out-of-tune hip-hop to call for holy war

The world's only known jihadist rapper who uses out-of-tune hip-hop to drum up support for his holy war has been added to the FBI's Most Wanted List. U.S.-born Omar Shafik Hammami is thought to be a senior leader with al-Shabaab, the Al-Qaeda affiliated group in Somalia which was placed on the U.S. State Department's terror blacklist in 2008.

Also known as Abu Mansour al-Amriki or 'the American', Hammami has been releasing rap songs in English on the internet since 2009 even though music is forbidden in Al-Qaeda's strict interpretation of Islam. In two songs entitled Send Me A Cruise (Missile) and Make Jihad With Me, he taunts the West in a toneless drone and calls on other young Americans like him to join him on his mission.

In Make Jihad with Me, his singing style is described by ABCNews as a 'deep Barry White growl'.

In the songs, Hammami says he hopes to be killed by a drone strike or in a cruise missile attack so he can achieve martyrdom. He invites young people to join the jihad to 'wipe Israel off the globe' and encourages strikes against the U.S. military in Afghanistan and Somalia.

Hammami was born and raised to a Syrian father and American mother in a quiet suburb in Daphne, Alabama, but spiralled into radicalism before joining militant jihadists in 2007. He is among hundreds of foreign fighters in the ranks of the al-Shabaab, Somalia's most dangerous militant group, that is trying to topple the country's weak U.N.-backed government.

He was pulled into the terror network after marrying a Somalian-Canadian woman and later being 'brainwashed' on internet forums. He moved to Egypt, where he met a fellow fundamentalist from America, Daniel Maldanado, who paved the road to Somalia for him. However, his wife and the mother of his daughter refused to follow him and asked for a divorce.

Earlier this year, he was rumoured to have been beheaded, but a month later he released his autobiography The Story of an American Jihaadi, which critics said contained odd spelling and banal observations.