Sayyed Mohammad Al-Musawi,
Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to religious questions. In the past, he has also spent significant time in India guiding the community.
The black turban is the turban of the Prophet Muhammad (SAWA). This fact is mentioned in both Shia and Sunni books.
The Sayyed Ulama wear black turban which is the turban of their great grand father, the Prophet Muhammad (SAWA).