It could be her ageless energy, her six-pack abs or her two gorgeous kids.
Or perhaps D, all of the above.
Whatever the reason, solo senation and No Doubt frontwoman Gwen Stefani came out number one in a survey by I Heart Radio to determine the Coolest Mom in rock.
Stefani beat out Sheryl Crow, Beyonce, Shakira, Christina Aguilera and Madonna, among others. That's solid company, for sure.
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