I can't access the details of Mo Mo, but you usually play songs in chat rooms. You need: 1. Open the music player and select the song you want to play; 2. Copy the link address of the song or click the share button to get the link address of the song; 3. Enter an instruction in the chat box or click the corresponding button, such as "Play Song" or "Add Music"; 4. Paste the song link address into the dialog box; 5. Wait for the song to play or continue chatting. Note: You should pay attention to copyright issues when playing songs in Momo Chat Room. If you are not an individual or organization that owns the copyright of the song, please don't play it in the chat room.