I'm wondering if the question actually means a share of the profits. Really, since they are paid for their work, they are turning some sort of profit, but I'm guessing that wasn't the question. As most albums don't even turn a profit, I'd say probably not. In a case like
Wicked, where the album was a huge success, the girls still probably don't get what they were paid beyond recording it, unless they negotiated something else. Performers are generally just paid a flat fee and make no royalties from it, so the answer is most likely no, unless it's a special circumstance.
"How do you like THAT 'misanthropic panache,' Mr. Goldstone?" - PalJoey