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\t\t<\/p>\n Kaitlin Olson<\/strong><\/a> is addressing husband Rob Mac<\/strong><\/a>\u2018s decision to change his last name.<\/p>\n The 48-year-old It\u2019s Always Sunny in Philadelphia<\/em> actor recently announced that he was professionally and legally changing his last name from \u201cMcElhenney\u201d to just \u201cMac.\u201d<\/a><\/p>\n While attending PaleyLive\u2019s It\u2019s Always Sunny in Philadelphia 20th Anniversary Celebration<\/strong><\/a><\/em> on Tuesday (July 1), Kaitlin<\/strong>, 49, shared her reaction to Rob<\/strong> changing his last name.<\/p>\n Keep reading to find out more\u2026<\/em><\/strong><\/span>\u201cI\u2019m legally Olson McElhenney, but I go by Olson, so I don\u2019t really have to change anything,\u201d Kaitlin<\/strong> told People<\/a><\/em>. \u201cWe can call each other whatever we want. Whatever makes him happy, makes me happy.\u201d <\/p>\n If you didn\u2019t know, Rob<\/strong> and Kaitlin <\/strong>married in 2008 and share sons Axel<\/strong>, 14, and Leo<\/strong>, 13. While announcing that he\u2019s changing his last name, Rob<\/strong> said that their sons will be keeping \u201cMcElhenney\u201d as their last name<\/a>.<\/p>\n Also in attendance at anniversary celebration were Kaitlin<\/strong> and Rob<\/strong>\u2018s co-stars Glenn Howerton<\/strong><\/a>, Charlie Day<\/strong><\/a>, and Danny DeVito<\/strong><\/a>.<\/p>\n Season 17 of It\u2019s Always Sunny in Philadelphia<\/em> will premiere on Wednesday, July 9 at 9 p.m. ET\/PT on FXX with two brand-new episodes, with episodes available to stream the next-day on Hulu. Watch the trailer here<\/a>!<\/p>\n <\/span><\/p><\/div>\n