Dream : Old Friends

I am sitting at a cafe whereby it was near a big area with a kids playground.
I saw some of my School friends, I assume it was a Class Reunion.
Then my friends started to have a song battle.
Sxxxxxxx and another guy is singing.
Sxxxxxxx look at me and started singing.
To my surprise the song is one of the song I listen to.
So I sing along and he seems surprised and happy that I know the song.
Sxxxxxxx walk around the table and the big area.
But Sxxxxxxx never fail to walk in front of me and sing.
Seem like I am the only one who knows the song.
Then everything turns blurry and I woke up.