50 or 25: Heidi Klum sticks to mental age instead of physical

Heidi Klum might be aged physically but singer still feels young and refreshed internally, proving it right, age is just a number and even her 50th birthday that is around the corner is not challenging her perspective.

Instead, she’s just happy and ready to sit back and enjoy the festivities.

Klum, ahead of the season 18 premiere of America's Got Talent, spoke with Entertainment Tonight and queried about the illustrious party planning enthusiast that what’s in the plan and coming up on her special day, June 01.

"I passed the buck to my husband!" Klum said with a laugh. "Because usually, I'm the one, for the four kids, I always come up with a big party or you know, obviously for my [husband]. So, I'm always like doing the big parties and inviting all the friends and thinking about all the shenanigans around it."

"But I thought, 'You know what? I'm, 50, honey, this party is for you to figure out,'" Klum said, adding that she's content to let her husband, Tom Kaulitz, get everything together for the big birthday. "He's taking care of it for me."

"So, I'm excited! I'm just gonna lean back and enjoy that day," she added, smiling.

When others think 50 is a milestone, Klum on the other hand doesn’t pay much heed to number and is not even letting her vision getting impacted by it or her future plans.

"To be honest, I don't let this number change my path or what I do. It is, for me, just a number, you know? Because I don't feel 50, internally," she shared. "I mean, sometimes I look in the mirror and I'm like, 'Oh yeah, I am 50.' But internally, I feel like I'm 25."

"I'm full of energy. My husband is 33 and I know I have more energy than him!" she added. "So, I feel like, you know, so far so good... the birthday doesn't change anything for me. My passions are the same passions -- I love to travel and be there for my family."