Speaking to the magazine, the singer revealed, "I feel more beautiful than I've ever felt because I've given birth. I have never felt so connected, never felt like I had such a purpose on this earth."
And as for baby Blue? "She's just the cutest thing", says the proud new mum, who shows off more statement jewellery (in her favourite colour, of course) on the front cover.
So who else made the list? Actress Sofia Vergara was placed in second, followed by Charlize Theron in third place and the Duchess of Cambridge in the tenth spot.