willow smith 21st century girl '21st Century Girl' has debuted, and Willow Smith is channeling her inner Rihanna and her inner awesomeness in equal measure. Yes, the 'Whip My Hair' singer has indeed followed up her debut single with a jam just as danceable and catchy, called '21st Century Girl.' And don't forget, she's still only 10 years old.

The song, which premiered on Ryan Seacrest's show Monday morning, has spread across the web like wildfire. Listen to '21st Century Girl' after the jump!