I'm probably late in my discovery, but we tumbled across Janelle Monae through an NPR interview... She:
Has an android alter ego ( how rad is that?), an awesome hair do that only she can pull, mesmerizing dance moves ( Plus she can moon walk. Anyone who can moon walk definitely wins my respect!), and fantastic presence and showman shipment.
Here's a favorite by her.
I think If I had an alter ego, I would definitely be like Kiki: a flying witch delivering stuff all around, with a pet black cat that has an attitude, and a small stereo. You can't beat that! I already have a nice broom, now all I need is a cat... and a small stereo. ( I wouldn't want to be a teenage witch though. I'm glad those years are over!)
What would your Alter Ego be?