Am i right in saying this record belongs to Celine Dion with Think Twice? It was in the chart 15 weeks before it got to number one - I haven't found a song (bar rereleases) that has beat this?

Ed Sheeran - Thinking Out Loud

26-25-29-23-28-20-18-16-13-17-18-24-19-18-17-10-4-2-{1}-2-2-4-4-1-2-3-3-3-3-5-6-8-7-7-10-12-14-19-20-19-16-19-24-26-26-26-30-30-31-32-31-28-34-35-42-35-38-42-45-46-47-47-49-51-52-51-58-58-59-55-50-57-58-68R(7)-58-71-70R(2)-74-73-68-74->81

Topped the UK charts in its 19th week in the top 40, then returned to #1 five weeks later.

That's quite a feat by Ed Sheeran.

The one that immediately sprang to mind for me was Dead or Alive's You Spin me Round, which at 15 weeks equals the Celine Dion track.

Chart run: 55, 49, 51, 58, 65, 55, 48, 45, 41, 42, 40, 19, 5, 2, 1, 1, 6, 12, 20, 30, 36, 49, 64

Edit: just had a quick look and Think Twice made no1 in its 16th week on chart.