The challenger of the first period:

You sing and I sing: "Plasticine"

I sang "Dream Eyes" again and again to challenge the challenger: " "Childhood is growing up"

(Challenge successful)

Second challenger:

"Beautiful Sunshine"

(Guardian Successful)

The winner of the third phase:

"Find a new experience"

(Successful in defending)

The fourth phase ( Challenger Li Yuqi challenged the champion successfully):

"Tell You Quickly"

(Failed to defend the challenge)