Last year’s headliner Bruno Mars watched his album sales jump more than 160 percent right after his Super Bowl appearance, and his earnings for the year topped $60 million, good enough to place 12th on the Forbes list of richest entertainers. Ms. Perry has already sold nearly 100 million units, and that should increase directly after a halftime of greatest hits (even last year’s guests Red Hot Chili Peppers saw their greatest hits package soar over 400%), but the sales are almost an afterthought to an artist in the current music environment. In the new Music 4.0 world we live in, the music is the marketing, not the product.
While Perry came in 23rd on that same list with $40 million last year, she can expect a big bump in revenue in 2015 thanks to a major increase in her concert asking price as well as a big jump in her sponsorships. What that means is that the overhead involved in any major tour she mounts will diminish greatly with sponsors signing on for big dollars, which is where the real money in music is today. Read more on Forbes.
" and being plastered all over the media everywhere, her new 
album managed to sell just 192,000 copies the first week out, and only a bit under 39,000 the second week. 10 years ago it would've been a couple of million.
and was the way that major labels did business, today it's just a blip on the radar of a stratified audience.
" but that just doesn't bring in a lot of dough these days. It's albums that are the big moneymakers, and like Rihanna and Ke$ha, big singles sales and lots of exposure doesn't necessarily turn into the album sales that pay a label's bills.