Mai Kuraki
 

Her older stuff was Hikki-ish. Haven't kept up with her recent releases, though. =/

Same here, I was a fan of her first two albums but lost track of her recent releases. She has a really sweet girly style of pop, almost with an innocent kind of hip hop flavour. My favourite songs are "Love, Day after Tomorrow" and "Stand Up", and other good ones are "Delicious Way" and "Reach for the sky", and I think "Secret of my heart" is pretty popular too. She's so cute ^^ Her voice isnt extremely amazing but her songs are sweet.

Mainly Pop/R&B

Samples in discography section as usual:
http://www.mai-kuraki.com/

I love her <3 Her latest stuff is pretty dance-pop, you should try her new single "Growing of my heart". I like her old style better, with songs such as "Never gonna give you up" and "Simply Wonderful".

Totally agree!

Well fro her latest releases I have to say P.S MY SUNSHINE is pretty addicting and groovy!

She also has some disco-like songs on her newest album, "dancing" and "P.S my sunshine" f.ex. Her voice is really soft and relaxing, but it can get boring to listen to too many of her songs after one another. I think her best new songs are "dancing", "LOVE, needing" "P.S my sunshine", but some of the album ballads are ok too. My fav of her old songs (that I haven't listened a lot too... ) is Time after time ~ hana mau machi de ~.