1. Joey Yung joined as the second replacement singer in I Am a Singer 4 and started singing in the seventh episode.

The seventh issue: "Midnight Serenade", original singer: Li Hackin;

The eighth issue: "Thinking of Your Feelings", original singer: Wu Qixian;

The ninth issue: "Sha Ke", original singer: Sammi Cheng;

The tenth issue: "Suddenly Want to Love You", the original singer: Xu Ruyun;

The eleventh issue Issue: "Bad Boy", original singer: Zhang Huimei;

Twelfth issue (breakout competition): "Let go of your mind", original singer: Anita Mui;

Twelfth issue The third period (finals): "Intensify the Strength" is a collaboration with William Chan, the original singer is Joey Yung; the return song is "So Close So Far", the original singer is Zhang Liangying;

The fourteenth period (Summit Meeting): "The Can't Wait Suite" is a collaboration with Hacken Lee, original singers: Joey Yung & Hacken Lee.

2. The Cantonese songs she sang on I Am a Singer 4 include:

The seventh issue: "Half Moon Serenade", original singer: Li Hacken;

The ninth issue: "Shake", original singer: Sammi Cheng;

The thirteenth issue (finals): "Intensify the Strength"; "So Close So Far"

The 14th issue (summit meeting): "The Can't Wait Suite" is available in Cantonese and Mandarin.