There were three dumb blonde guys on an island who
found an old pot and started rubbing at it, when
suddenly out popped a genie. The genie told them
that he only could grant 3 wishes so they would
each get one.

The first guy asked the genie to make him smarter
so he got turned into a red-head.

The second guy wanted to be even smarter than the
first, so the genie turned him into a brunette.
Then the last guy wished to be even smarter than
both his friends...

...so the genie turned him into a woman.