A politician, political leader, or political figure (from Greek "polis") is someone who is involved in influencing public policy and decision making. This includes people who hold decision-making positions in government, and people who seek those positions, whether by means of election, inheritance, coup d'état, appointment, electoral fraud, conquest, divine right, or other means. Politics is not limited to governance through public office. Political offices may also be held in corporations, and other entities that are governed by self-defined political processes.

Public choice theory involves the use of modern economic tools to study problems that are traditionally in the province of political science. (A more general term is "political economy", an earlier name for "economics" that evokes its practical and theoretical origins but should not be mistaken for the Marxian use of the same term.)

In particular, it studies the behavior of voters, politicians, and government officials as (mostly) self-interested agents and their interactions in the social system either as such or under alternative constitutional rules. These can be represented a number of ways, including standard constrained utility maximization, game theory, or decision theory. Public choice analysis has roots in positive analysis ("what is") but is often used for normative purposes ("what ought to be"), to identify a problem or suggest how a system could be improved by changes in constitutional rules. A key formulation of public choice theory is in terms of rational choice, the agent-based proportioning of scarce means to given ends. An overlapping formulation with a different focus is positive political theory. Another related field is social choice theory.

William Rory Gallagher,  /ˈrɔriː ˈɡæləhər/ GAL-ə-hər; 2 March 1948  – 14 June 1995, was an Irish blues-rock multi-instrumentalist, songwriter, and bandleader. Born in Ballyshannon, County Donegal, Ireland, and raised in Cork, Gallagher recorded solo albums throughout the 1970s and 1980s, after forming the band Taste during the late 1960s. A talented guitarist known for his charismatic performances and dedication to his craft, Gallagher's albums have sold in excess of 30 million copies worldwide. Gallagher received a liver transplant in 1995, but died of complications later that year in London, England at the age of 47.

Gallagher was born in Ballyshannon, Co. Donegal; his father, Daniel, was employed by the Irish Electricity Supply Board, who were constructing a hydro-electric power plant on the Erne River above the town. The family moved, first to Derry City, where his younger brother Dónal was born in 1949, and then to Cork, where the two brothers were raised, and where Rory attended the North Monastery School. Their father had played the accordion and sang with the Tir Chonaill Ceile Band whilst in Donegal; their mother Monica was a singer and acted with the Abbey Players in Ballyshannon. The Theatre in Ballyshannon where Monica once acted is now called the Rory Gallagher Theatre.

John Symon Asher "Jack" Bruce (born 14 May 1943) is a Scottish musician and songwriter, respected as a founding member of the British psychedelic rock power trio, Cream, for a solo career that spans several decades, and for his participation in several well-known musical ensembles. Best recognized as a memorable vocalist and bass guitarist, Bruce has been referred to as a "World-class pioneer in his main instrument; a composer of some of the most endurable and recognisable rock songs of our time; an accomplished classical, jazz and Latin musician and one of popular music's most distinctive and evocative voices." He is also trained as a classical cellist. The Sunday Times stated "... many consider him to be one of the greatest bass players of all time."

Bruce was born on 14 May 1943, in Bishopbriggs, East Dunbartonshire to musical parents who moved frequently, resulting in the young Bruce attending 14 different schools, ending up at Bellahouston Academy. Bruce began playing the jazz bass in his teens, and won a scholarship to study cello and musical composition at the Royal Scottish Academy of Music and Drama, while playing in Jim McHarg's Scotsville Jazzband to support himself. The Academy disapproved of its students playing jazz, however. "They found out," Bruce told Musician correspondent Jim Macnie, "and said 'you either stop, or leave college.' So I left college."

Pier Luigi Bersani (Italian pronunciation: [pjɛr luˈiːdʒi berˈsaːni]) (born 29 September 1951 in Bettola) is an Italian politician and the current Secretary of the Democratic Party, the main center-left political party in Italy. He was Minister of Industry, Commerce and Craftmanship from 1996 to 1999, Minister of Transports from 1999 to 2001, and Minister of Economic Development from 2006 to 2008.

Pier Luigi Bersani was born September 29, 1951, in Bettola, a mountain municipality in Nure Valley, in the province of Piacenza, Emilia-Romagna region, Italy. His father was a mechanic and a gas station clerk. After earning his high-school degree in Piacenza, Bersani enrolled in the University of Bologna where he graduated in philosophy with a dissertation on Pope Gregory I. He married Mrs. Daniela Ferrari in 1980, and he has two daughters: Elisa and Margherita. After a short experience as teacher he committed his life to politics and public administration.

Bersani joined the Italian Communist Party and subsequently the Democratic Party of the Left. As member of the National Secretariat of the Democrats of the Left, he was responsible for the economic sector. Very young, he became Vice-President of the Mountain Community of Piacenza, then elected in the Regional Council of Emilia-Romagna region and Vice-President of Emilia-Romagna in 1990; he was President of Emilia-Romagna from 1993 to 1996.

Aloe Blacc (born Egbert Nathaniel Dawkins III; January 7, 1979) is an American soul singer, rapper and musician. He is married to Australian rapper Maya Jupiter.

Blacc was born in Orange County, California to Panamanian parents. He began his music career in 1995 as a rapper in the hip hop duo Emanon with producer Exile.

By the late 1990s, Blacc was part of the duo Emanon and joined the group Lootpack on tour in Europe. The duo released six albums. This led to Blacc working with the French Jazz group Jazz Liberatorz. He released an album at the end of the 1990s.

In 2003, Blacc signed with Stones Throw Records and began a solo career. On July 11, 2006, he released his first LP album, Shine Through, on CD, vinyl record and online (on the Stones Throw website).

He then toured across Europe and the U.S. with Emanon, while working on his second solo album.

In 2009, Blacc collaborated with the Japanese hip hop producer Cradle. They called themselves Bee.

In 2010, Blacc released his second album, Good Things, on Stones Throw records. The album was produced by Jeff Dynamite and Leon Michels for Truth & Soul Productions.