Roughly, "Hello, this is Mari Yaguchi. I recently changed my hair to a more mature colour. But meeting fans, nobody brought it up. That was very disappointing. Well, probably people were silently thinking 'Oh, did she change it again?' Anyway, I was blonde until recently. Since nobody noticed the change despite its being pretty big, I thought I'd report on it here. Next year, please look forward to seeing me in Hello! Project concerts. Thank you for your continued support."
They cut off the concert sentence before it got to a verb, so I'm not sure how to interpret that.