United Kingdom, Aug. 27 -- Brenda Song has paid a glowing birthday tribute to Macaulay Culkin.

The 38-year-old actress has taken to social media to pay tribute to the Hollywood star, who turned 46 on Wednesday (26.08.26).

Brenda - who has been engaged to Macaulay since 2022 - wrote on Instagram: "Happy birthday to my one and only @culkamania [heart]

"My best friend, the best papa, my favorite adventure partner, the only person who will play Yahtzee and rewatch physical 100 or squid games with me over and over, the love of my life- I don't even want to think of what my life would look like without you. I'm so darn grateful you were born today. I love celebrating you.

"Thank you for doing this life thing with me. I love you so SO much. ...