Keep it in tune with the times, but don't write with the specific purpose of trying to create a hit. If you're doing it strictly to make money, you're crazy. There are easier ways to make money.
“You know what a champion is? A champion is someone who's ready when the gong rings - not just before, not just after - but when it rings.”
“Certainly I had my preference, and I very much hoped that George W. Bush would be our next president.”