Beyoncé's Evolution

After more than TWO DECADES in the SPOTLIGHT, Beyoncé has become MUCH MORE than a POP ICON. She's a CULTURAL FORCE who has routinely DEFIED EXPECTATIONS and TRANSFORMED the way we UNDERSTAND the POWER of ART to CHANGE how WE SEE OURSELVES and EACH OTHER. But at 40, she feels like she's just SCRATCHED the SURFACE.

- Kaitlyn Greenidge

Women born at the dawn of the 1980s were among the last generation to live an analog life and the first to see themselves reimagined in digital. Beyoncé's childhood coincided with the rise of home-recording equipment-video cameras, stereo systems that let you record your own voice, keyboards that let you find whatever sound you wanted, personal computers to synthesise it all. The girls before her had mirrors and the echoes of the trees and magazines with cartoon approximations to reflect themselves. Her generation was the first to regularly experience the dizzying accuracy of playback. It could be a destabilising force; there's your voice as you think it sounds, and then your voice when it comes back to you, after you've hit record.

Beyoncé Knowles-Carter came of age during that digital revolution, and knowing how to navigate that dissonance is part of her artistic superpower. She has built her company, Parkwood Entertainment, into a media conglomerate that includes a fashion line, IVY PARK. She is now a mother of three, to nine-year-old Blue Ivy and four-year-old twins Rumi and Sir, with husband JAY-Z. The iconic couple has just been named the new faces of Tiffany & Co., which was acquired earlier this year by LVMH and is relaunching under its auspices. And she is working on new music along with an array of other projects that promise to obliterate old boundaries and vault her further into uncharted territory.

"Is that what I sound like? Is that what I want to send into the world?" These are questions she answers anew, each decade of her life. Now, at 40, Beyoncé listens to her voice alone.

You turned 40 on 4 September. Reflecting on your life so far, what has each decade taught you?