Such a sad loss.

Alan Thicke passed away at the age of 69 yesterday after suffering a heart attack while playing hockey with his son, and the news has rocked Hollywood and his many celeb pals. The actor is survived by wife Tanya and sons Brennan, 41, Robin, 39, and Carter, 19.

The "Blurred Lines" singer broke his silence to tell the LA Times that his father was "the greatest man I ever met" and "always a gentleman." "I saw him a few days ago and told him how much I loved and respected him," he shared.

Here are some of the condolences and tributes to the Growing Pains star:
    Ellen Degeneres: "America loved Alan Thicke. I'm so sad he's gone. Sending so much love to his family."

    Alyssa Milano: "Alan Thicke was always the nicest and happiest person in the room. Gone way too soon. Rest In Peace."

    Bob Saget: "So sad is the passing of Alan Thicke. Such a good husband, father, brother, and friend. Rest in peace dear Alan."

    Candice Cameron Bure: "I'm sad beyond words that Alan Thicke has passed away. I've known you since I was 8 years old and so glad I had the pleasure of working with you again so recently on Fuller House. You were a part of my family and hockey family. You will be greatly missed. ❤️ My heart hurts."

    Demi Lovato: "Had the pleasure of meeting Alan Thicke and his amazing wife Tanya a few years back. My thoughts and prayers are with his family. RIP."

    Larry King: "So sorry to hear of the passing of Alan Thicke. A wonderful talent, a wonderful man."

    Howie Mandel: "I'm shocked to hear about Alan Thicke. He was a good man who gave me some big breaks in my early days. I'll miss you buddy."

    Ryan Seacrest: "Sad to learn of Alan Thicke's passing. He was a great friend over the years. Thoughts & prayers to his family."

    John Legend: "RIP Alan Thicke. I grew up watching him and got to know him through Robin. He was also so kind to me. So sad to hear about his passing."

Our heart breaks for his loved ones. Could 2016 get any worse?!