My Darkest Days is a Canadian post-grunge band based in Toronto, consisting of lead singer Matt Walst, Doug Oliver, Brendan McMillan, and Sal Coz Costa. They were discovered by Chad Kroeger of Nickelback, who signed them up for his production company, 604 Records.In June 2010, the band went on tour with Sick Puppies, Janus, and It's Alive, and shot a video in Las Vegas to support their first single, "Porn Star Dancing," released on June 21. On August 4 the video was 67th on the iTunes list of 100 most-downloaded videos worldwide, and the single was its fourth most downloaded rock song in Canada. Kroeger appears in the "Porn Star Dancing" video, as does American rapper Ludacris and guitarist Zakk Wylde.