Selena Gomez chose a very special day to make her on-again romance with Justin Bieber Instagram-official — his birthday.

The Wolves singer shared an adorable picture of herself laughing and pointing to a photo of Bieber to celebrate his big day, reports EOnline.com.

“March 1, 1994 someone I know that happens to be super cool was born. Boom (sic),” she captioned the photo. Gomez also posted — then quickly deleted — a photo of blue and black balloons with a silver “24” numbers that also included a wall of Polaroid selfies of the pair.