Macaulay Culkin Shares Rare Photo of ‘Best Friend’ Brenda Song in Honor of Her Birthday [Video]

Macaulay Culkin made a brief return to social media to mark one very special occasion.

On Wednesday, the Home Alone star penned a sweet tribute to his fiancée, Brenda Song, in honor of her 36th birthday.

“Happy birthday to the best friend, mother, ally, colleague, lover, and partner I could ever wish for. You are my reason. I love you. P. S. The milk is due. Can you pick some up on your way home from work?” Culkin wrote. 

To kick off the sweet tribute, Culkin shared a candid picture of Song sitting in a robe with a towel on her head, next to a bottle of champagne. Keeping things cheeky, the actor also posted a picture of a carton of milk — that happened to expire on her birthday.

Culkin, 43, and Song have been in a relationship since 2018. …