She hosts a weekly show on Ustream.tv called "Friday Kohmi". In 2011, she released "Egao no Megamisama" to the iTunes Store to raise money for the recovery from the 2011 Tōhoku earthquake and tsunami, using 120 viewers of her show to form the chorus. For her 20th anniversary in 2012, Hirose released a compilation album titled "Single Collection" and an English language cover album of Christmas songs titled "Love X'mas", working with Jun Abe, Satori Shiraishi, Yuji Toriyama, and Takeshi Nakatsuka to arrange it. She also embarked on a 3-stop anniversary tour called "Happy &amp; Smile ～Super Best Selection～", with concerts at the Zepp Tokyo, Nagoya, and Osaka halls.