The marital piano ballad, which he dedicated to his wife Chrissy Teigan, dethrones Pharrell’s 'Happy' after 10 weeks to take the top spot. The cut also reaches the top in its 30th week, marking the third longest climb to #1 in the chart’s 55-year history. His highest charting singles were 2005′s 'Ordinary People' and 2008′s 'Green Light', which both peaked at #24. Wow. Took him long enough. An actual decade. But congrats to him. This is certainly a breakthrough for R&B music in this day and age. Now THAT's something to be "happy" about.