A security guard, whose video went viral for singing along at a concert, alleges that he has been fired by the company he was employed with. Calvin Denker gained attention after joining Taylor Swift on stage during her performance of "Cruel Summer" in Minneapolis, Minnesota. However, Denker informed his TikTok followers that he was subsequently terminated by BEST, his former employer. Image: Pic: AP Although Denker's singing was not the issue, his employers were reportedly displeased that he had distributed notes to audience members requesting photos or videos of himself with the singer. In a video posted on social media, Denker shared, "In short, I was fired for it. My previous security company claimed they had a rule against taking photos with performers... Every photo of me that night was taken from behind the barricade, just like any other fan's photo. I never used my own phone. And most importantly, I ensured Taylor Swift's safety and the enjoyment of all fans." Denker concluded his message by asking his followers to refrain from criticizing the company, stating, "I still got to work one of the most amazing concerts ever... so that is fantastic. I bear no grudges against my employer." TikTok This content is provided by TikTok, which may be using cookies and other technologies. To show you this content, we need your permission to use cookies. You can use the buttons below to amend your preferences to enable TikTok cookies or to allow those cookies just once. You can change your settings at any time via the Privacy Options. Unfortunately we have been unable to verify if you have consented to TikTok cookies. To view this content you can use the button below to allow TikTok cookies for this session only. Enable Cookies Allow Cookies Once After Denker's video gained popularity, he released a video in which he explained his motivation for the job and how he had requested photos from fans. It seems his former employer came across this video and realized he had violated their rules. Advertisement 'I wasn't allowed to turn my back' He recounted, "Five years ago, I attended [Swift's previous tour] Reputation with my then-girlfriend, now wife, who wasn't particularly fond of Taylor Swift at the time, so I had to convince her to come along... I spoke to many security guards that night, learning about their roles and how they could attend concerts and sporting events in Minneapolis. It sounded amazing to me." Image: Taylor Swift fans buying concert merchandise during her Eras tour. Pic: Scott Strazzante/San Francisco Chronicle via AP Denker expressed that Swift concerts were always his "goal" when accepting the job, stating, "When she announced her Eras tour, I was beyond excited and signed up as soon as possible." He described being "astounded" by the enthusiastic fans and Swift's outstanding performance during the first Minneapolis show. Read more: Swift reportedly awards $55 million in bonuses Earthquake-like impact of "Shake It Off" The music tycoon who acquired Taylor's back catalog Be the first to receive Breaking News Install the Sky News app for free However, Denker revealed, "I wasn't permitted to turn my back on the audience and truly watch Taylor perform... After the first night, I realized how close Taylor Swift was getting to me, so I wanted to capture the moment in a photo." Denker distributed small notes that stated he was not allowed to use his phone, but if Swift appeared behind him, he requested attendees to take a photo and send it to his number. "I handed these notes to a few individuals in the front row for the second night, and they were courteous and understanding about it." Sky News and Swift's representatives have been contacted for comments, as well as BEST regarding this matter.