It seems very unlikely that the cool and charismatic Kwon Yool is a fan of Lovelyz--or any girl group for that matter--but as it so turns out, he likes to hum along to Lovelyz's "Ah-Choo" because it "purifies his mind." 

The actor was a guest on the March 30 airing of 'Park Kyung Lim's 2 O'Clock Date' where he admitted as much. A listener requested a bright, happy song to match the equally bright afternoon, and Park Kyung Lim had obliged by playing "Ah-Choo." 

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Kwon Yool, upon hearing the song, said, "When I was filming for 'Happy Ending Once More,' Jang Na Ra and the director liked the song so much that they kept humming it. So I joined in. It really purifies the mind."