Ever get butterflies when someone you like is around but they do not know it. It has been a long time since I have had a crush but Yuna and Usher capture that feeling really well in their single, "Crush." It is funny watching my kids grown up and go through their crushing phases. How do you tell your kids to cherish these moments. They do not get it. They want to rush through life. Then they will rely on nostalgic songs to remind them of their childhood.