The records he breaks as this happens:
He replaces his own song, "Wake Me Up" which spent 26 weeks at #1. He is the first artist to replace themselves at #1 on the chart.
"Wake Me Up"s 26 week chart run at #1 is the longest ever (2nd longest "Get Lucky", only half the weeks - 13....).
He is the first artist to have 2 #1's on the chart.
The chart was made January 2013, previous #1's:
Scream & Shout - 5 weeks
Harlem Shake - 8 weeks
Feel This Moment - 2 weeks
Gentleman - 1 week
I Love It - 2 weeks
Get Lucky - 13 weeks
Applause - 3 weeks
Wake Me Up - 26 weeks
He is about to come for like 50 consecutive weeks at #1