what is the song that summer sings when Dewie is deciding who will be singers for the band?

i recognised this when i watched the movie now i cant get over it does anyone know who wrote it who sings it or what it is called? if anyone knows anything about the song please please please respond.

thanx!

The song Summer sings is called "Memories" from the Broadway play called CATS.

Actually it is called "Memory" and is written by Andrew Lloyd Webber for the play CATS.

"Memories, all alone in the moonlight"

thanx lots i didn't know where that song came from but i knew it from somewhere and it was bugging me.