10. Ke$ha - Blow (22nd Day/=/Peak:03)
09. Koda Kumi - Passing By (17th Day/-3/Peak:02)
08. Kalafina - Magia (34th Day/+1/Peak:01[8])
07. Namie Amuro f/After School - make it happen (27th Day/+1/Peak:01[2])
06. Namie Amuro f/Kaname Kawabata - #1 (2nd Day/-2/Peak:04)
05. Britney Spears - Hold It Against Me (30th Day/=/Peak:01[8])
04. Willow Smith - 21st Century Girl (7th Day/-1/Peak:02)
03. Jennifer Lopez f/Pitbull - On The Floor (16th Day/-1/Peak:01[8])
02. Namie Amuro f/Tomohisa Yamashita - UNUSUAL (2nd Day/-1/Peak:01[1])
01. Kanye West f/Rihanna & Kid Cudi - All Of The Lights (28th Day/+6/Peak:01[2])
3/20/11:
Kalafina - Magia (35th Day/-2/Peak:01[8]) Ke$ha - Blow (23rd Day/+1/Peak:03) Koda Kumi - Passing By (18th Day/+1/Peak:02) Namie Amuro f/Kaname Kawabata - #1 (3rd Day/-1/Peak:04) Britney Spears - Hold It Against Me (31st Day/-1/Peak:01[8]) Namie Amuro f/After School - make it happen (28th Day/+2/Peak:01[2]) Jennifer Lopez f/Pitbull - On The Floor (17th Day/-1/Peak:01[8]) Namie Amuro f/Tomohisa Yamashita - UNUSUAL (3rd Day/-1/Peak:01[1]) Willow Smith - 21st Century Girl (8th Day/+2/Peak:02) Kanye West f/Rihanna & Kid Cudi - All Of The Lights (29th Day/=/Peak:01[3])
-None
Retired:
#01: Kanye West f/Rick Ross, Jay-Z & Nicki Minaj - Monster
#02: TVXQ - Keep Your Head Down
#03: MBLAQ - Stay
#04: Kana Nishino - Distance
#05: Koda Kumi - POP DIVA
#06: Rihanna - S&M
Kalafina - Magia (36th Day/=/Peak:01[8]) Koda Kumi - Passing By (19th Day/-1/Peak:02) Namie Amuro f/Kaname Kawabata - #1 (4th Day/-1/Peak:04) Ke$ha - Blow (24th Day/+2/Peak:03) Namie Amuro f/After School - make it happen (29th Day/-1/Peak:01[2]) Britney Spears - Hold It Against Me (32nd Day/+1/Peak:01[8]) Namie Amuro f/Tomohisa Yamashita - UNUSUAL (4th Day/-1/Peak:01[1]) Willow Smith - 21st Century Girl (9th Day/-1/Peak:02) Jennifer Lopez f/Pitbull - On The Floor (18th Day/+2/Peak:01[8]) Kanye West f/Rihanna & Kid Cudi - All Of The Lights (30th Day/=/Peak:01[4])
-None
Retired:
#01: Kanye West f/Rick Ross, Jay-Z & Nicki Minaj - Monster
#02: TVXQ - Keep Your Head Down
#03: MBLAQ - Stay
#04: Kana Nishino - Distance
#05: Koda Kumi - POP DIVA
#06: Rihanna - S&M
Namie Amuro f/Kaname Kawabata - #1 (5th Day/-2/Peak:04) Kalafina - Magia (37th Day/+1/Peak:01[8]) Ke$ha - Blow (25th Day/-1/Peak:03) Chris Brown f/Busta Rhymes & Lil Wayne - Look At Me Now (1st Day/DEBUT/Peak:07) Britney Spears - Hold It Against Me (33rd Day/-1/Peak:01[8]) Willow Smith - 21st Century Girl (10th Day/-2/Peak:02) Namie Amuro f/After School - make it happen (30th Day/+2/Peak:01[2]) Jennifer Lopez f/Pitbull - On The Floor (19th Day/-1/Peak:01[8]) Namie Amuro f/Tomohisa Yamashita - UNUSUAL (5th Day/+2/Peak:01[1]) Kanye West f/Rihanna & Kid Cudi - All Of The Lights (31st Day/=/Peak:01[5])
Retired:
#01: Kanye West f/Rick Ross, Jay-Z & Nicki Minaj - Monster
#02: TVXQ - Keep Your Head Down
#03: MBLAQ - Stay
#04: Kana Nishino - Distance
#05: Koda Kumi - POP DIVA
#06: Rihanna - S&M
comment mine too 
Kalafina - Magia (35th Day/-2/Peak:01[8])
Ke$ha - Blow (23rd Day/+1/Peak:03) 
Koda Kumi - Passing By (18th Day/+1/Peak:02)
Namie Amuro f/Kaname Kawabata - #1 (3rd Day/-1/Peak:04) 
Britney Spears - Hold It Against Me (31st Day/-1/Peak:01[8]) 
Namie Amuro f/After School - make it happen (28th Day/+2/Peak:01[2]) 
Jennifer Lopez f/Pitbull - On The Floor (17th Day/-1/Peak:01[8])
Namie Amuro f/Tomohisa Yamashita - UNUSUAL (3rd Day/-1/Peak:01[1])
Willow Smith - 21st Century Girl (8th Day/+2/Peak:02) 
Kanye West f/Rihanna & Kid Cudi - All Of The Lights (29th Day/=/Peak:01[3])
Retired:
Chris Brown f/Busta Rhymes & Lil Wayne - Look At Me Now (1st Day/DEBUT/Peak:07)