CollXtion I (pronounced "Collection One") is the debut extended play by the Canadian singer-songwriter Allie X, released physically on April 7, 2015 with a short sell cycle.

The residency began with a live performance on April 30 and it included interactive media installations, a pop-up shop, and a curated online experience.

[17] Edmonton Journal's Julia LeConte gives a positive review of the release, calling it, "a smartly written seven-song EP that offers up a smorgasboard of indelible hooks," and goes on to say her song creating ability matches her "spectacular" voice.

"[20] Jean-Luc Marsh, hailing from Pretty Much Amazing, gave a slightly less than positive review, saying that, "X has an occasional knack for pop at its saccharine, venomous best."

"[23] Kevin Ritchie of NOW Toronto gives the EP a rating of "Good," saying that "[she] is the latest in a long line of acts... to revel in uptempo melancholia," but that "it's got solid hooks, massive melodies, multi-tracked emotions and a pile of unhealthy relationship metaphors.

"[2] Carl Williot from Idolator said that Catch was "everything that's wonderful about under-the-radar pop music right now: immaculate hooks, pristine synth work, vocal versatility, bold atmospherics and a beating, bursting heart," and named it "the best song of 2014.