What is the title of this song: First line: You are the baby in my heart, how to do how to Happy.

Song: How to be Happy

Singer: Sun Yue

Composer: Yao Xiaoqiang

Lyrics: Jun Yi

You're the baby in my heart forever

How to do it how to be happy

You're the snuggle that I indulge in

Every single day tires you out

(backing vocals)

I can't tell if it's wrong or right

Forgiveness among friends is precious

Think it's heartlessness

Impulsive for you regardless of the joys and sorrows

For you, I don't regret my pain

You're the one who gives me comfort when I'm upset

Forgive me for being heartless

I'm so sorry.