Yadda waƙar ''Khó Vẽ Nụ Cười' ta yi a cikin jadawalin kiɗan
— waka ta Đạt G
Mafi kyawun nasarorin ginshiƙi da "Khó Vẽ Nụ Cười" ya samu a cikin dukkan sigogin kiɗan - Manyan Wakoki 40, Manyan Wakoki 100 - Kullum, Manyan Waƙoƙi 10 Masu Ban Haushi, Manyan Waƙoƙi 20 da ake so. Sau nawa "Khó Vẽ Nụ Cười" ke fitowa a cikin manyan ginshiƙi? "Khó Vẽ Nụ Cười" ya rera ta Đạt G . An buga waƙar a kan 01 janairu 1970 kuma ta fito makonni akan jadawalin kiɗan.