Heidi Klum has announced she has gotten engaged to her beau, Tokio Hotel musician Tom Kaulitz. "I SAID YES," the model and "America's Got Talent" judge captioned in an Instagram photo Monday showing her and her fiance smiling side by side. On Kaulitz's face rests Klum's hand, which has two diamond rings on the left ring finger and two baubles on the thumb. People.com reported Klum, 45, and Kaulitz, 29, made their first public appearance as a couple in May. Klum has four children with singer Seal, her former husband. They were married from 2005 to 2014.