It's Madonna's 55th birthday today! The queen of pop has come a long way since her humble beginnings -- it's safe to say that no other star has had a transformation quite like hers, and her makeup artist agrees. "There's nobody like her," Gina Brooke, who has worked with Madonna for years, told InStyle.com previously. "I’ve worked with so many people in the industry, and there is no one and will never be anyone like Madonna." The proof is definitely in her showstopping performances and creative sartorial choices. From her '80s-era style that defined the decade and her boho-chic "Ray of Light" looks, to the timeless red lip and sleek getups she wears today, we rounded up 22 most iconic style moments that span the decades. So crank up her Madgesty's greatest hits, and celebrate by clicking the photo to take a retrospective look at her ever-changing wardrobe.
Tell us your top five Madonna looks by picking your favorites in our Madonna A-List, and share your results with your friends on Twitter and Facebook.