Just in case someone else has gotten on the Reina train, here she is in the Hello! Project group High-King, which only was active for one single (?).
High-King ~ Cinderella Complex for PSP
26MB 4:03 H.264/AVC 480×272
I thought this song was so-so when I first heard it, but like other songs where Reina Tanaka sings it seems to be covered with some kind of “brain glue” that makes it stick