Well, I have 4 singers who have a singles project, so choose your favorite!
alan - 5 Elemental Singles Project
Earth - Natsukushii Mirai
Air - Sora Uta
Wind - Kaze no Tegami
Fire - RED CLIFF
Water - Megumi no Ame
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Koda Kumi - 12 Singles Project
1 you
2 Birthday Eve
3 D.D.D
4 Shake It Up
5 Lies
6 feel
7 Candy
8 No Regret
9 Ima sugu hoshii
10 KAMEN
11 WIND
12 Someday
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Tohoshinki - TRICK Singles Project
1 Two hearts/Wild Soul (Changmin)
2 Runaway/My Girlfriend (YooChun)
3 If...?!/Rainy Night (Junsu)
4 Close to you/Crazy Life (Yunho)
5 Keyword/Maze (JaeJung)
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Namie Amuro - 60s/70s/80s
60s NEW LOOK
70s Rock Steady
80s WHAT A FEELING
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I know Namie's is one whole single, but the concept is really good, and I thought it was an 'era' project... so anyway pick your favorite!
I'm going with Kuu.
So many hits from there~