The song "Rudolph the Red-Nosed Reindeer" was written by Johnny Marks in 1948. The lyrics of the song tell the story of a reindeer with a unique red nose who is excluded from the other reindeer because of his appearance. However, Rudolph's special nose becomes an advantage when it helps him guide Santa's sleigh through a thick fog on Christmas Eve. The song became popular in the 1949 animated film "Rudolph the Red-Nosed Reindeer" and has since become a holiday classic.