[2006] Does Ayumi time her releases with the products she endorses?

[Nicolas]

Regardless whether they have a significant boost to her sales or not I have to argue that TV drama tie-ups are actually one of the strongest. The song will be heard for a longer period than a CM (In rotation a few weeks, usually) in the case of Voyage for My Little Chef it was was on air for 3 months with Voyage coming out 2 weeks after it ended. A song then becomes somewhat iconic and if the drama is popular becomes part of the popularity and so when the single comes out a lot of people want a copy.

And she's had her fair share of TV drama/movie themes, actually.