The song peaked at number two in the United Kingdom, South Africa and New Zealand and topped the charts in Australia, Canada, Ireland, Portugal, Sweden, Switzerland and the Netherlands. It knocked off 'Happy' by Pharrell Williams, which had spent 10 weeks at number one. On the week ending May 16, 2014, it peaked at number one on the Billboard Hot 100 becoming his first number-one single in the United States. 'All of Me' first aired on American mainstream urban radio as the album's third single on August 12, 2013. It is dedicated to Legend's wife Chrissy Teigen. 'All of Me' is a hit song by American singer John Legend from his fourth studio album Love in the Future (2013).