Upon reflection, these are the eight I'd choose. Don't ask me why.
"Moonlight Sonata" by Beethoven
"Ballade in G Minor" by Chopin
"You Get What You Give" by the New Radicals
"Four Seasons" by Vivaldi
"Stairway to Heaven" by Led Zeppelin
"Girls Just Wanna Have Fun" by Cindy Lauper
"Porcelain" by Moby
"Mickey" by Toni Basil