You should sing the party's birthday with your heart. As for what to sing, hey hey, I recommend some songs "In the Bright Sunshine" to you. Yan Weiwen's chorus works are very good. I Love You China is very good. The Song of Contemporary Revolutionary Soldiers' Core Values is difficult for Song Zu Ying to sing, but the chorus works well, that's all. As long as you don't sing love, you can answer sincerely.