There’s no official measure to test whether or not something has officially become a trend, but the unofficial standard that I use goes something like this: When three different pieces from three different brands repeat the same element, and those pieces are all available at roughly the same time, it’s a pretty good bet that more of the same is on the way from other brands and at other price points. Ladies and gents, my spidey sense is tingling over holograms. And it’s not just the whole Tupac-at-Coachella thing.

A couple of weeks ago, we brought you the exciting news that Proenza Schouler will be including several holographic leather PS11′s in its upcoming Resort 2013 collection. Not long after, Sigerson Morrison’s holographic-trimmed suede sandals popped up on Moda Operandi for resort pre-order. Finally, Hussein Chalayan’s holographic leggings came in stock at Net-a-Porter and swiftly sold out before they even made it off the New Arrivals page. That’s three, even if you don’t count the Theyskens’ Theory hologram pants and bags from Spring 2012, and that’s all the proof I need. Want to get ahead of the trend? We have some suggestions after the jump, plus the purchase information for the items above.

The Hussein Chalayan Holographic Leggings quickly sold out at Net-a-Porter for $965 after their debut last week, but what I’m really anticipating is the release of the Fall 2012 collection’s matching holo oxfords.