Irving Berlin was an American #composer and #lyricist. He was considered one of the greatest #songwriters in American history. He published his song, "Alexander's Ragtime Band", in 1911 and had his first major international hit. Berlin has three principles of writing a popular song:uncomplicated, simple and direct. During his 60-year career he wrote more than 1,000 songs, "God Bless America" is considered the unofficial national anthem, and "White #Christmas" is one of the most recorded songs in history.