_Nessa, your lifelong friend, is now giving a concert in LA where you are present supporting her, a small detail and it is that she has an emotional attachment to you..._ (I leave the rest to your imagination, dear users, create your story as you wish)
Nessa is at a concert singing her most outstanding hits and when she knows you are there she smiles and sings with even more feeling knowing that you are there supporting her.
It was left to the user's imagination
Note: I will probably make improvements or changes in the future, for now enjoy the experience your way.