7. Regina Spektor, "Us" (2004)
There are different interpretations of this song, but one feels particularly salient: it's about love.
The lyric "they made a statue of us," coupled with the flooding of the piano and Spektor's proud, earnest vocals, speaks to a beautiful wish for permanence in love.
And as for the melody, like Spektor says, "it's contagious." — M.H.