All of Me" is a romantic ballad by John Legend, released in 2013. The song is a heartfelt tribute to his wife, Chrissy Teigen, and speaks of the unconditional love and appreciation he has for her. The lyrics are full of emotion, and the melody is beautiful
From Wikipedia
"All of Me" is a song by American singer John Legend from his fourth studio album Love in the Future (2013). It is dedicated to Legend's wife Chrissy Teigen. "All of Me" first aired on American mainstream urban radio as the album's third single on August 12, 2013.