If you were to put solo singers in one band, who would they be?

Have you ever thought of putting together 2 or more solo singers/artists in one band? Who would they be? I have these persons in my mind that I want to be on one band:

1. Sia, Beyonce, Lady Gaga
I think putting them together will make a good team. I think the three artists are very talented.

2. Blake Shelton and Taylor Swift
Both would be a good team of country singers.