The Pirates of the Caribbean star took to Instagram to share a sweet birthday message he penned for his ex, with whom he shares a 6-year-old son, Flynn. The Australian supermodel and Victoria's Secret Angel turned 34 on Thursday.
"#HAPPY BIRTHDAY to an amazing mother, co-parent and friend," Bloom captioned a photo of sweet, handmade sign that read "I [love] u mum" written in wooden sticks.
Last August, Kerr opened up to Harper's Bazaar about her and Bloom's efforts to raise their son together despite their divorce, and how it even dictated where she wanted to live with her new fiancé, "because we wanted to be close as a family." Check out the video below to hear more.