Jennifer's famous friends shared their own birthday messages to Frankie and couldn't help but comment on the birthday girl's cuteness.
"The SMILE! Careful, she’s gonna pinch your Colgate ads. HBD Frankie!" writer Zoe Foster-Blake commented.
Model Cheyenne Tozzi joked: "Eats cake like I do."
"The BEST way to eat birthday cake! I still do it that way... She is gorgeous Jen. Congrats to all three of you!" penned The Project's Lisa Wilkinson.
Back in October 2019, Jennifer and Jake welcomed baby Frankie with a heartfelt post.
"Frankie Violet Hawkins Wall, dream come true! So thankful to be holding our beautiful healthy baby girl! We couldn’t be more in love," she wrote on Instagram alongside a photo cuddling her precious newborn.
"Welcome to the world Frankie Violet. Our hearts are full," dad Jake also wrote on his own Instagram post.
Frankie's arrival followed a miscarriage Jen endured in August 2019 and despite her fears that she would never conceive, the former Myer ambassador was over the moon when her daughter was born.
"When she came out, I was just so overwhelmed; I was crying, it was incredible," she told Marie Claire Australia.
Jennifer had to deal with mum shamers when Frankie was just three-months-old when the model shared a snap of herself wearing a hat while she left her daughter's head uncovered.
"Where's the baby's hat?" asked one of Jennifer's followers, while another added: "Loving the photo by why does Mummy have a hat on and not Bubba?"
Jen was quick to respond to her critics, explaining "bub was under a beach umbrella two seconds after the picture was taken".