Mariah:
Vision Of Love - 3 Weeks
Love Takes Time - 4 Weeks
Someday - 10 Weeks
Emotions - 4 Weeks
I'll Be There - 8 Weeks
Dreamlover - 11 Weeks
Hero - 10 Weeks
Fantasy - 7 Weeks
One Sweet Day - 13 Weeks
We Belong Together - 16 Weeks
Shake It Off - 3 Weeks
Don't Forget About Us - 5 Weeks
I know Aaliyah had "Try Again", but I don't know which airplay #1s Beyonce and Janet have had. I know they've had plenty though.
Aaliyah:
Try Again - 9 Weeks
Beyonce:
[Destiny's Child
Say My Name - 1 Week
Independent Woman Part I - 9 Weeks
Survivor - 5 Weeks]
Crazy In Love - 8 Weeks
Check On It - 3 Weeks
Irreplaceable - 11 Weeks
Single Ladies - 5 Weeks
Janet:
When I Think Of You - 2 Weeks
Miss You Much - 3 Weeks
Escapade - 4 Weeks
Come Back To Me - 2 Weeks
Love Will Never Do - 7 Weeks
That's The Way Love Goes - 10 Weeks
Again - 4 Weeks
All For You - 2 Weeks
Beyonce:
Crazy In Love - 8 Weeks
Baby Boy - 9 Weeks
Check On It - 3 Weeks
Irreplaceable - 11 Weeks
Single Ladies - 5 Weeks
Janet:
When I Think Of You - 2 Weeks
Miss You Much - 3 Weeks
Escapade - 4 Weeks
Come Back To Me - 2 Weeks
Love Will Never Do - 7 Weeks
That's The Way Love Goes - 10 Weeks
Again - 4 Weeks
All For You - 2 Weeks
Umbrella (4 weeks)
Take a Bow (6 weeks)
Live Your Life (8 weeks)
Rude Boy (6 weeks)
Love The Way You Lie (8 weeks)
Only Girl (3 weeks)
What's My Name (7 weeks)
S&M (3 weeks)
We Found Love (12 weeks)
Diamonds (3 weeks)
Stay (2 weeks)
So in the ~6 years since Umbrella began its reign, Rihanna has ruled for 62 weeks
Umbrella (4 weeks)
Take a Bow (6 weeks)
Live Your Life (8 weeks)
Rude Boy (6 weeks)
Love The Way You Lie (8 weeks)
Only Girl (3 weeks)
What's My Name (7 weeks)
S&M (3 weeks)
We Found Love (12 weeks)
Diamonds (3 weeks)
Stay (2 weeks)
So in the ~6 years since Umbrella began its reign, Rihanna has ruled for 62 weeks
