The Black Eyed Peas songstress had her lengthy locks pulled back into a dramatic fishtail braid for the two-mile run to raise money for the American Red Cross Japan Earthquake Fund -- an event that her husband, Josh Duhamel, organized.
The tight ponytail was a perfect complement to her equally tight black warm-up suit. Add to that her dark sunglasses and signature black fingernails, and the 36-year-old (who just celebrated her birthday the day before) looked like a total rock star as she hit the streets to run with 4,000 other participants.
While we're used to seeing Fergie with her honey-highlighted blond strands worn long and wavy, we think she looks equally as sexy -- and sporty -- with them pulled back into a braided ponytail.
Either way, we "Gotta Feeling" that all eyes were on her at this race!
Want to create your own beautiful braid? Take a look at the video below for tips.