To Be With You
Weird when you hear a second song by a One-Hitter: I heard Bow Wow Wow's "Do You Wanna Hold me?" today.
From Star Wars Episode VII: the Broadway Edition... FN and the Amazing Technically-Poe's Dream Jacket.
Edited because I see that my entry was already posted years ago. How about:
Shakespears Sister - "Stay"
From the album Hormonally Yours
"To be concerned about being grown up, to admire the grown up because it is grown up, to blush at the suspicion of being childish; these things are the marks of childhood and adolescence… When I became a man I put away childish things, including the fear of childishness and the desire to be very grown up." - C.S. Lewis