The list of top female singers net worth in 2011 is out. Who's number one...Madonna? Mariah? Britney? Celine? Cher? Adele?

The survey for 2011 may not list Whitney Houston, but that may change in 2012.  As with Elvis, Marilyn, and Michael, it is very likely Houston's income will increase posthumously.

Some of the numbers will surprise you.

[Via:  whatuwantnow.blogspot.com]