Who is Puccini?

Yes, I snagged the following information from Wikipedia, but it's all the same, right?

Giacomo Antonio Domenico Michele Secondo Maria Puccini (22 December 1858 – 29 November 1924) was an Italian composer whose operas, including La bohème, Tosca, Madama Butterfly, and Turandot, are among the most frequently performed in the standard repertoire. Some of his arias, such as "O mio babbino caro" from Gianni Schicchi, "Che gelida manina" from La bohème, and "Nessun dorma" from Turandot, have become part of popular culture.

Hopefully I have satisfied your curiosity! But if you ever want to learn more, the Internet is always available :P

P.S. Just as a side note, I participated in La Boheme as a little Italian boy and my favorite all time song to sing is O Mio Babbino Caro!