Colton Dixon Celebrates Milestone Birthday of Twin Girls, Saying They Have Been 'the Greatest Joy' of His Life (Exclusive)

Colton Dixon's copy girls are increasing up fast!

The American Idol alum, 33, precocious celebrated a milestone day for his daughters, Ava Dior (or simply Dior arsenic her parents telephone her) and Athens Elizabeth, sharing exclusive photos pinch PEOPLE. Dixon, who welcomed his girls pinch woman Annie, says that it's "hard to believe" that his daughters are now 5 years old.

“It’s difficult to judge Dior and Athens are turning 5!" Dixon, who precocious released his caller azygous "The Love I Have for You," tells PEOPLE. "Having them successful our lives has been nan top joyousness and we are excited for this adjacent shape of life pinch them. Every time is an adventure! We are honored God chose america to beryllium their parents."

The proud dada said that they started nan large time pinch luncheon connected nan shore, wherever nan twins gave him a surprise.

"We started nan time pinch luncheon connected nan beach, wherever nan girls amazed maine pinch a golden plaque for [Dixon's opus "Miracles"]!" he says. "Seeing them stepping up pinch it is simply a representation I will ever treasure!"

After nan formation surprise, Dixon tells PEOPLE that nan family of 4 spent nan girls' typical time astatine nan "happiest spot connected Earth."

"We ended their day celebrations astatine their favourite spot successful nan world — Disneyland!" he shares. "We made immoderate caller princess friends while we braved nan power astatine nan happiest spot connected earth!"

Never miss a communicative — motion up for PEOPLE's free regular newsletter to enactment up-to-date connected nan champion of what PEOPLE has to offer​​, from personage news to compelling quality liking stories.  

Shortly aft welcoming his copy girls successful August 2020, nan "Made To Fly" caught up pinch PEOPLE to talk about life arsenic a dada to identical copy girls. While nan creator was initially caught by astonishment erstwhile he heard he was having twins — he recalled reasoning "I was going to propulsion up" — he said astatine nan clip that he "wouldn't person it immoderate different way."

"I emotion being a woman dad, first and foremost. It's truthful fun," he shared.

As for pursuing successful their father's footsteps, Dixon said astatine nan clip that his girls are "definitely willing successful music." He added, "Every erstwhile successful a while, small Dior, if euphony is on, she has this really soft, saccharine voice. She'll get existent quiet and past she'll commencement ... we deliberation it's singing. It's nan cutest thing."