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During a Monday appearance on The Ellen DeGeneres Show, Academy Award-winning actress Sandra Bullock opened up about her “happy tears” while celebrating Mother’s Day with son Louis, 5.

“It was so much. I just cry at anything now. I feel like, I mean I didn’t have him that way, but I feel like hormonally,” she said in reference of Louis’ adoption.

“But everything he does [makes me cry],” the proud mom, 50, continued. “He sang me a song that he wrote. He said I wrote you a song, and I didn’t have the heart to tell him he plagiarized. But it was you know, ‘Bingo.’ You know ‘Bingo’ the song.”

She added: “Well the song was about you know, there was a man who had a dog and bingo was his name-o. There was a mom I love so much and Sandy was her name-o. I’m just like ahhhh. And then he played the harmonica in between and then he just kept looking at me.”

The Minions star went on to gush about her only child.

“He’s all boy with a really tender heart,” Sandy B added.