is have yourself a merry little christmas public domain

Yes, "Have Yourself a Merry Little Christmas" is a public domain song, which means it is free for anyone to use and perform. It was written in 1943 by Hugh Martin and Ralph Blane, and it has since become a classic holiday song. The song has been performed by many artists over the years, including Frank Sinatra, Judy Garland, and more recently, Lady Gaga. It is a beautiful and timeless song that evokes the spirit of the holiday season.