Luigino Celestino Di Agostino (born 17 December 1967), better known by his stage name Gigi D'Agostino, is an Italian DJ, remixer and record producer. In 1986, he started his career as a DJ-spinning Italo Disco, and releasing his first mix, titled "Psychodelic".

Born in Turin, D'Agostino spent his childhood between his native city of Turin and Brescia, where the Media Records studios are located. As a child, D'Agostino wanted to be someone in the world of disco music. Starting out working as a stonemason and a fitter, he began his musical career as a DJ by organizing parties in clubs. His debut was in a club near Turin called "Woodstock". He was a resident DJ of an Italian disco named Ultimo Impero from 1993 to 1998.

D'Agostino's first release was Noise Makers Theme, a double-A sided record with a track by Daniele Gas on the other side, which launched the Noise Maker label, under the direction of Italian house producer Gianfranco Bortolotti. D'Agostino would continue working with Gas, as well as Mauro Picotto's production team in the following years. His 1999 single "Bla Bla Bla" became a major hit in Europe. He described the single as "a piece I wrote thinking of all the people who talk and talk without saying anything!" As a DJ, D'Agostino is known as one of the "pioneers of Mediterranean Progressive Dance," consisting of minimalistic sounds and Latin and Mediterranean melodies. As a record producer, D'Agostino's uses the pseudonym "Gigi Dag"; he transforms a piece, originally destined for the discos, into a success for the mainstream public.

William Charles "Bill" Ayers (born December 26, 1944) is an American elementary education theorist and a former leader in the movement that opposed U.S. involvement in the Vietnam War. He is known for his 1960s activism as well as his current work in education reform, curriculum, and instruction. In 1969 he co-founded the Weather Underground, a self-described communist revolutionary group that conducted a campaign of bombing public buildings during the 1960s and 1970s, in response to U.S. involvement in the Vietnam War.

He is a retired professor in the College of Education at the University of Illinois at Chicago, formerly holding the titles of Distinguished Professor of Education and Senior University Scholar. During the 2008 US presidential campaign, a controversy arose over his contacts with then-candidate Barack Obama. He is married to Bernardine Dohrn, who was also a leader in the Weather organization.

Ayers grew up in Glen Ellyn, a suburb of Chicago, Illinois. He attended public schools there until his second year in high school, when he transferred to Lake Forest Academy, a small prep school. Ayers earned a B.A. from the University of Michigan in American Studies in 1968 (his father, mother and older brother had preceded him there). His parents are Mary (née Andrew) and Thomas G. Ayers, who was later Chairman and CEO of Commonwealth Edison (1973 to 1980), and for whom Northwestern's Thomas G. Ayers College of Commerce and Industry was named.