I don't doubt that's why certain godless types achieve success - aid from evil spirits - despite their character flaws that stand in the way of success. The drunk in the gutter won't sell anyone on a godless lifestyle. Satan needs certain charismatic individuals to prove successful "without God." It's a huge help to satan's public-image-effort if his favored godless dwell in a stable society founded on godly principles, because ... everyone will benefit across the board by the societal standards in place. Yes the wicked CAN prosper, if society is structured according to God's will. No man is an island. A rising tide lifts all boats.
Music celebs even admit that song lyrics just flow out of them, when they "open their minds" to spirits. Even admit to alternate personas overtaking their bodies when performing (e.g. Beyonce).
Sure celebs try to sell their soul, maybe make a formal decision or perform some ritual - but ultimately mercy sought, is mercy found, so as long as they're alive, their soul can be redeemed if they so decide. It's not something Satan can own. Consider it more of a dedication, than a sale. Still, as a result of a dedication, secular artists are full of BS, false notions, hatred of good people, spiritual darkness, and satanic lies.