Secretary of State or State Secretary is a commonly used title for a senior or mid-level post in governments around the world. The role varies between countries, and in some cases there are multiple Secretaries of State in the Government.

In many countries, a Secretary of State is a mid-level post. It is usually a politically appointed position, although in some countries, such as Germany and Sweden, it can be filled by a member of the executive bureaucracy (civil service) as a political appointment. In the Holy See, there is one Secretary of State, who coordinates all the departments of the Roman Curia (that is, equivalent to a Prime Minister). In the United Kingdom a Secretary of State is a member of the Cabinet appointed by the Queen on the advice of the Prime Minister (that is, equivalent to a Minister). In the federal government of the United States of America, there is one Secretary of State, the most senior political appointee responsible for foreign policy (that is, equivalent to a Foreign Minister).

David Jon Gilmour,CBE (born 6 March 1946) is an English rock musician and multi-instrumentalist who is best known as the guitarist, one of the lead singers and main songwriters in the progressive rock band Pink Floyd. It is estimated that as of 2010, the group have sold over 250 million records worldwide, including 74.5 million units sold in the United States.

In addition to his work with Pink Floyd, Gilmour has worked as a producer for a variety of artists, and has enjoyed a successful career as a solo artist. Gilmour has been actively involved with many charities over the course of his career.

In 2003, he was appointed CBE for his charity work and was awarded with the Outstanding Contribution title at the 2008 Q Awards. In 2011, Rolling Stone Magazine ranked him number 14 in their list of the greatest guitarists of all time.

Gilmour was born in Cambridge, England. His father, Douglas Gilmour, was a senior lecturer in zoology at the University of Cambridge and his mother, Sylvia (née Wilson), was a teacher and film editor who raised her family at Grantchester Meadows, later immortalised by a Roger Waters song on Pink Floyd's Ummagumma. He has a younger brother who is also a musician.