40 single-most popular in Japan.

40 – Eisaku Ookawa – “Nani wa Kotobuki”
39 – Anna Tsuchiya – “Brave Vibration”
38 – Minami Akina no Super Mild Seven |Mai Satoda with Kazoku Goda – “I Believe ~Yume wo Kanaeru Maho no Kotoba~/Don’t leave me”
37 – BINECKS – “Blue Feather”
36 – YA-KYIM – “Tabun Kitto/Happy Face(love ver.)”
35 – Kiyoshi Hikawa – “Roukyoku Ichidai”
34 – Machiko Kitano – “Akanezora”
33 – SCANDAL – “Shoujo S”
32 – Yuuki Seguchi – “Hourouki”
31 – YU-A – “Yuuhi”
30 – Yutaka Yamakawa – “Kirisame no Shiatoru”
29 – Masaharu Fukuyama – “Keshin”
28 – Akio Kashuji – “Mizu Hanabi”
27 – Ringo Shiina – “Ariamaru Tomi”
26 – BOOM BOOM SATELLITES – “BACK ON MY FEET”
25 – BIGBANG – “MY HEAVEN”
24 – Saburo Kitajima – “Hiei no Kaze”
23 – Vidoll – “Focus”
22 – SONOMI – “SUMMER”
21 – Mika Shinno – “ONNA”
20 – GACKT – “Flower”
19 – JASMINE – “sad to say”
18 – Arashi – “Ashita no Kioku/Crazy Moon ~Kimi wa Muteki~”
17 – ℃-ute – “Shochu Omimai Moushiagemasu”
16 – Nana Tanimura – “every-body”
15 – HAN-KUN – “KEEP IT BLAZING”
14 – AKB48 - “Namida Surprise!”
13 – mihimaru GT – “Torokechau Dandy”
12 – flumpool – “MW ~Dear Mr. & Ms. Picaresque~/Natsu Dive”
11 – Yusuke – “Tanpopo/Kaizokusen/Sonote”
10 – KREVA – “AKA (Shunkan Speechless/Kun ni Mune Kyun Uwaki na Vacance)”
9 – Yajima Beauty Salon – “Hamaguri Bomber”
8 – Junko Akimoto – “Tasogare Love Again”
7 – Tohoshinki – “Stand by U”
6 – ORANGE RANGE – “Hitomi no Saki ni”
5 – BIGBANG – “Gara Gara Go!!”
4 – Ayaka – “Minna Sora no Shita”
3 – Arashi – “Everything”
2 – Koda Kumi - “3 Splash (Lick Me/Ecstasy/Hashire!)”
1 – Tegomass – “Tanabata Matsuri”