@ Paradisekisss - 1st gen Tanpopo were producing songs similar to Momusu at the time, which were those sad songs about love. They were just following Momusu's lead, which is why when Momusu went from mature to cutesy, so did Tanpopo. If they had kept on with mature songs when the cutesy singing was what all the fans loved, then they wouldn't have sold.
@ LianaiGeming21 - Kago was in Tanpopo before Mini Moni. 1st gen was cool, but I only ever managed to like 1 song of theirs, even with my insane love of Ishiguro. 2nd gen really MADE Tanpopo, plus 2nd gen Tanpopo got Tanpopo their first #1.