Depends how you define a song as 'intelligent'.

I find Kelly Clarksons songs to be very intelligent, they are often upbeat tempo and can appeal to kids, but to an older generation understanding the lyrics, they can say something totally different. Never again is a really catchy tune, and although a child can listen to the song, know the words, and enjoy it, they don't really get the whole 'f**k you' message the song delivers.