Miley has 6
Jonas Brothers have 3
Taylor has 5
Bruno has 2

Ne-Yo has 3/5

All of them.

5

On The 6: 3x
J.Lo: 4x
J To Tha L-O! The Remixes 1.5x
This Is Me... Then 2x
Rebirth 1x

I believe the OP means albums that were achieved solo. As in Beyoncé's with Destiny's Child don't count, Justin Timberlake's with *NSYNC don't count, and Michael Jackson's with the Jackson 5 don't count…

Don't know cause I only got ten fingers

Britney - 8
Nicki - 2
Danity Kane - 2

taylor is 4 for 4

7 I think

Taylor Swift - 5xP
Fearless - 6xP
Speak Now - 4xP
Red - 4xP
The Holiday Collection - Platinum

5

3 (4 if you include her posthumous album).

Nicki has 2/2.

3/3

We can only hope