Kelly Clarkson is making quite a few physical changes. The 'Stonger' singer dropped 30 lbs. and attributed her newer, slimmer figure to being happy and in love with boyfriend Brandon Blackstock.

She also just debuted a new hair color. Clarkson is now a blonde, so her strands now match her bright and sunny, "I'm in love" disposition.

Clarkson, known for her warm, chocolatey locks, often tinted with honey highlights, was snapped leaving the BBC Radio 1 studio in London, showing off golden locks. She's been rocking the heavy bangs and long brown strands, alternating  between stick straight and wavy textures for several months, so it was time to shake things up.

She's lightened up for summer and it suits her. We're also loving her red colored jeans and bright purple blazer. This season is all about bold colors and Kel is a perfect example of that.

While Clarkson has expressed that she is a pop singer who doesn't want to wear extravagant outfits and costumes, she is showing off a flare for fashion and for trying something new, courtesy of her hair hue.

What do you think, PopCrush readers? Do you prefer the 'Mr. Know It All' singer as a brunette or do you dig her lighter shade?

Watch the Kelly Clarkson 'Dark Side' Video