Meghan Trainor & Fiance Daryl Sabara Talk Wedding Planning, Kids & Her 'Perfect' Engagement Ring (Exclusive)

The couple recently got engaged on the singer's 24th birthday.

Meghan Trainor and Daryl Sabara can't get enough of each other!

The newly-engaged couple was all smiles as they shared details about their perfect proposal and dished on their future wedding.

"I'm the luckiest," the "I'm a Lady" songstress told ET's Leanna Aguilera at Fox's Television Critics Association press tour in Los Angeles on Thursday.

Sabara proposed to Trainor on her 24th birthday in December, a special moment he had been planning for "months."

"He hadn't slept [for] a long time," Trainor shared. "It was my dream come true and more."

"It was worth it," expressed Sabara.

According to The Four judge, the couple picked the ring out together. "That was the secret," she revealed. "But I just wanted to make it perfect, just in case, you know?"

"It's like, 'Just so you know, this one is my favorite.' And he was like, 'But let me have my moment to surprise you.' And he took his time and had his moment," she explained.

"I was surprised that she was surprised. It's so hard to surprise her," the former Spy Kids star added.

"It was my birthday too, so I was like, 'This is just a birthday getaway,'" Trainor continued. "And it was not. It was more."

As far as the wedding planning goes, the lovebirds will take their time and enjoy being "fiances."

"We've got a lot of friends and family and we're trying to think how we can fit them all in one place and it's going to take some planning," the singer stated.

Meanwhile, the "Me Too" crooner says she owes her new lifestyle and healthier look to her fiancé.

"He saved my life in every single way and he taught me how to eat healthy and we work out together," she shared.

So have they thought about planning for kids in the near future?

"Not soon, not right now," said Trainor. "That's why I'm working on my body. I want to be as healthy as I possibly can be for one day when we want to be kids."

For more on the adorable couple and their unforgettable proposal, watch below.

The Four: Battle for Stardom airs Thursdays at 8 p.m. ET/PT on Fox.