his adopted brother Dick Grayson had dragged him to a concert by a new band that was apparently super popular and hip because he said Jason needed to have some fun, except that when the concert started he didn't expect his ex to be the band's lead singer and his heart beat a little fast, he missed you so much and the song's lyrics rang out "oh yeah? Oh yeah? Oh yeah! Hello again, friend of a friend, I knew you when our common goal was waiting for" he listened to the song in silence