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\t\t\t\t<\/p>\n Katy Perry<\/strong><\/a> is facing more backlash for her new album, 143<\/em>.<\/a><\/p>\n Icelandic songwriter Arnthor Birgisson<\/strong><\/a>, who has worked with everyone from Celine Dion<\/strong><\/a> to Janet Jackson<\/strong><\/a>, spoke out on his now-private Instagram<\/a> in a post on his Instagram Story, comparing her upcoming song \u201cNirvana\u201d to a song he composed for Netflix<\/strong><\/a>\u2018s 2020 comedy Eurovision Song Contest: The Story of Fire Saga<\/em>, called \u201cDouble Trouble.\u201d<\/p>\n Fans on social media have been comparing the two songs\u2019 striking similarities<\/a> since \u201cNirvana\u201d was first teased from Katy<\/strong>\u2018s upcoming 143<\/em> album, and the producer finally spoke out.<\/p>\n Keep reading to find out more\u2026<\/em><\/strong><\/span><\/p>\n \u201c@katyperry really showed some guts by hiring a harasser to produce her new album, but she couldn\u2019t quite muster the courage to properly credit her inspirations,\u201d he wrote in a screenshotted post on his Story<\/a>, seemingly referring to the fact that Dr. Luke<\/strong><\/a> is producing Katy<\/strong>\u2018s album, following harassment allegations made by Kesha<\/strong><\/a> that led to a years-long legal dispute and eventually reached a settlement.<\/a><\/p>\n Katy<\/strong> recently debuted \u201cNirvana\u201d live<\/a> at the EVITA Party in West Hollywood, Calif.<\/p>\n Another star recently also called out Katy Perry<\/strong> for working with the producer.<\/a><\/p>\n