Celestino is a women's eveningwear company, headquartered in Manhattan, New York City, USA.

Celestino was established by American designer Sergio Guadarrama in 2006. He most recently presented his Fall/Winter 2012 Collection during New York Fashion Week. Sergio resides in New York City with his partner and Director of Celestino, Rusty Harper.

Guadarrama was born in Austin, Texas and has Fashion Design degrees from both FIDM in Los Angeles and FIT in New York. While studying at FIT, he established Celestino in late 2006. In 2007 Sergio was chosen by FIT to compete in the Jia Hai International Design Competition in Wuhan, China, where he placed 2nd from 41 international designers. He was the winner of the inaugural 2008 Supima Cotton Design Competition and in 2010 served as the youngest Critic for FIT's Special Occasion program with alumni Carolina Herrera and Calvin Klein.

While building Celestino, Sergio received his technical training at the Metropolitan Opera and worked on productions such as Lucia, The Magic Flute and Madame Butterfly.

Francesco De Gregori Officer OMRI (born 4 April 1951) is an Italian singer-songwriter. He is popularly known as "Il Principe dei cantautori" ("The Prince of the singer-songwriters"), a nickname referring to the elegance of his lyrics.

He is often referred as singer-songwriter and poet, although he prefers to be identified simply as "artist".

De Gregori was born in Rome to a middle-class family, and spent some of his youth in Pescara before returning to the capital. His elder brother, Luigi, was a musician and had a personal career with the name of Luigi Grechi (the mother's surname), chosen later in order to avoid confusion with the more famous Francesco.

Influenced by Bob Dylan, Leonard Cohen and the Italian singer-songwriter Fabrizio de André, De Gregori started to perform his songs (mainly personal translations of American folk songs) at the Folkstudio, in Rome, which was already frequented by his brother. On one occasion De André himself is said to have listened to De Gregori's work and appreciated it.