What is the history song All of Me?

The song "All of Me" is not a history song. It is a love song written by John Legend and Toby Gad for Legend's third studio album, "Love in the Future" (2013). The song was inspired by Legend's relationship with his then-girlfriend (and now wife), model and television host Chrissy Teigen. The lyrics express Legend's love and appreciation for Teigen and his desire to spend the rest of his life with her. The song was released as the album's second single in August 2013 and became a commercial success, peaking at number one in several countries, including the United States and the United Kingdom.