Not as easy as you'd think, some of these songs have tricky-ish bass pedal parts, but not necessarily a deal-breaker. If you're having a lot of trouble, hoard OD so that you constantly get the drum fill window, which will mean you have to hit the bare minimum of kick drum notes. I personally got this achievement on The Gambler, but you may have a personal favorite: Just make sure, as the achievement says, that you are on the expert difficulty. The achievement will pop on the song results screen.