Imagine Dragons frontman Dan Reynolds has uploaded a new video on his verified Twitter account and revealed an adorable moment with his children.

If you watch the video, while Gia James, one of Dan Reynolds’ twin daughters, accompanies the song with a whistle in her hand, Dan Reynolds hid behind the wall with his newborn baby, Valentine.

Later, Dan suddenly appeared with his newborn baby Valentine, who was wrapped in a black blanket. These sweet moments were taken by his wife, Aja Volkman.

Here’s what Dan Reynolds captioned:

“My little caterpillar.”

A Twitter user named hughduncy commented and said:

“You’re making me wanna have a kid in the future and I really don’t want to.”

Another fan named SubtleKissNo1Cs wrote:

“This is adorable!!”

Watch the Twitter video below.