Mezue ahịrịokwu na-esonụ: Ọ na-akwado ihe ngosi kwa izu na Ustream.tv a na-akpọ "Friday Kohmi". N'afọ 2011, ọ wepụtara "Egao no Megamisama" na iTunes Store iji nweta ego maka mgbake site na
2011 Tōhoku ala ọma jijiji na tsunami, na-eji 120 ndị na-ekiri ihe ngosi ya iji mepụta ukwe. Maka afọ iri abụọ ya na 2012, Hirose wepụtara album nchịkọta nke aha ya bụ "Single Collection" na album mkpuchi asụsụ Bekee nke abụ ekeresimesi nke aha ya bụ "Love X'mas", na-arụ ọrụ na Jun Abe, Satori Shiraishi, Yuji Toriyama, na Takeshi Nakatsuka iji hazie ya. Ọ malitekwara njem ncheta afọ 3 nke akpọrọ "Happy &amp; Smile <unk>Super Best Selection<unk>", na egwu egwu na ụlọ Zepp Tokyo, Nagoya, na Osaka.