It seems like this year will have 11 #1's at most (If Starboy finally goes #1) compared to last year which had 9 #1's.
2015
Blank Space (2 weeks)
Uptown Funk (14 weeks)
See You Again (12 weeks)
Bad Blood (1 week)
Cheerleader (6 weeks)
Can't Feel My Face (3 weeks)
What Do You Mean? (1 week)
The Hills (6 weeks)
Hello (7 weeks)
2016
Hello (3 weeks)
Sorry (3 weeks)
Love Yourself (2 weeks)
Pillowtalk (1 week)
Work (9 weeks)
Panda (2 weeks)
One Dance (10 weeks)
Can't stop the feeling (1 week)
Cheap Thrills (4 weeks)
Prediction:
Closer (15 weeks)

Starboy (3 weeks)
I think Starboy could go #1 during the album release hopefully.