So I just bought me a new pair of headphones, and I remember someone saying that they will have better sound and last longer if you wear them in by playing like medium levels for like 100 hours before putting them into a club enviorment, so I was wondering what you're thoughts are on this. I was thinking about just playing a sound clip that sweets from like 20-20000 frequencies i forget what the unit it, and just repeating it for a while, but yeah i dunno,

Since nobody has replied yet, I'd point you at this Headphone 'Burn In' FAQ on head-fi.

Usually I just listen to my headphones normally (but continue to play stuff through them) for a few days or so (I get impatient). I've done pink noise before, too, but what you could just do is practice with them since you'll be using them for DJing until the sound settles or you're used to wearing them or whatnot.