Just only last song!Singing for you .有语法错误,

Just only last song!Singing for you .有语法错误,
Just only last song!Singing for you .有语法错误,

Just only last song!Singing for you .有语法错误,
just 和 only重复了把都是 仅仅的意思,还有英语中哪有感叹号啊~还有last前面要加the的.额.还有如果是马上要唱的是不定式把~两种可能
Just the last song.To sing for you.（马上要唱）
Just the last song.Singing for you.（正在唱）