Celine Dion has shared a rare throwback photo of the day she gave birth to her son, Rene-Charles, exactly 21 years ago.

The singing sensation, 53, gushed over her eldest son as she wished him a happy birthday in a sweet post shared on Instagram.

In the throwback photo, Dion held a newborn René-Charles in a hospital bed, while her late husband René Angélil looked on with love.

Take a look at the sweet throwback picture right here:

[[instagramwidget||https://www.instagram.com/p/CZKDxBBuhKJ/]]

"René-Charles, 21 years of dreams have already passed. We gave you life… Thank you very much for giving us the wonderful gift of becoming your parents," she wrote alongside the touching snap.

"Since that day, I've been thriving as I watch you grow. Your intelligence, your generosity, your courage, and your great sensitivity never cease to move me.

"We guided you from our dreams, by holding your hand. Keep exploring and above all, listen to your heart knowing that you are always carried by our love, so that now your own dreams can come true," she continued.

"Happy Birthday René-Charles! Have fun my darling… We adore you," she added.

[[imagecaption|| Credit: Sipa US / Alamy]]

The 'My Heart Will Go On' hitmaker signed the post on behalf of herself, Angélil, and their 11-year-old twin sons Nelson and Eddy.

Angélil, who was also Dion's manager, died in 2016 at age 74, after years of battling throat cancer.

Earlier this month, the five-time Grammy Award winner shared a touching tribute to Angélil on the sixth anniversary of his death.

[[imagecaption|| Credit: UPI / Alamy]]

The Instagram post featured lyrics from her 2019 song 'Courage' and a black-and-white photo of Angélil taken by photographer Hans Lambrechts.

"I would be lying if I said I'm fine, I think of you at least a hundred times, cause in the echo of my voice I hear your words just like you're there… I miss you – Céline xx…" she captioned the snap.

[[instagramwidget||https://www.instagram.com/p/CYt5F9JOXJK/]]

The singer repeated the first portion of the phrase in a second paragraph, but replaced "I miss you" with the French translation "Tu me manques."

In May 2021, Dion spoke about life after losing a husband and a father in an interview on Today.

"I feel like René has given me so much through the years and still today," she said at the time. "I see my kids. I look at them — we live with him. We still live with him. He's part of our lives every day, so I have to say that I feel very, very strong."

Featured image credit: REUTERS / Alamy

Céline Dion shares rare throwback photo of lookalike son Rene-Charles on his 21st birthday