When I was at high school and the Spice Girls first appeared in 1996, I had an instant crush on Geri - Ginger Spice. As time went on, she appeared to put on a little bit of weight, and my crush turned into a minor obsession. Unfortunately, she never really got all that fat, and after the Spice Girls split up she started doing yoga and got really horribly thin. Urrgh!
Here is one of many drawings that I did depicting Geri as she should have become - an enormous BBW.

In the scenario I constructed around this drawing, the public failed to notice for a while that Geri was growing bigger, while at the same time, the rest of the group was getting thinner. As this was going on, the group's PR people began to notice that opinion polls unanimously showed that Geri was by far the most popular Spice Girl. This led to them renaming the group 'Geri and the Spice Girls', and making Geri the one who got the lion's share of the wealth from their chart success and merchandising. This led to her becoming very egocentric and greedy, and as the public seemed to not mind that she was gaining weight, she eventually had them doing all of the work while she gained all of the money and credit...as well as an enormous amount of weight. They became virtual slaves to their enormous bandmate, who they waited on hand and foot and watched as her popularity and wealth grew almost as fast as her waistline.
...Ah, if only!