DJ Hero

Any of the low intensity songs from the first setlist are fairly easy to earn 5 stars in Expert difficulty. Concentrate on keeping your taps and fader moves in time with the beat, and push for those multipliers - don't forget to use the effects knob, it doubles your multiplier.

Try particularly hard to ace the "perfect" sections that will ready your euphoria button, and trigger it where you have a lot of notes and fader moves - the fader moves are automated during euphoria, just watch that you have it in the right position when euphoria is about to end.

The Achievement will unlock at the end of the song. This Achievement might also unlock Four Star at the same time, but has not yet been confirmed if they stack.

Do Boom Tap By Grandmasterflash it's a song thats only taping so if you've playing any other rhythm games it shouldn't be too bad. Just hit the perfect parts and activate Euphoria when you have it. I think this is the easiest song and if you don't have the song yet its the bonus track in his setlist.