J.Lo has 18 weeks of #1's on Billboard Hot 100:

1999- If You Had My Love (4 weeks #1)
2001- I'm Real (4 weeks #1)
2002- Ain't It Funny (6 weeks #1)
2003- All I Have (4 weeks #1)

I hope with her upcoming 7th album "LOVE?" she comebacks to the Charts!!!!