2011 Oricon Number 1 Releases

#1 Singles and Albums in 2011 according to Oricon

From December 13, 2010 to December 11, 2011. Unlike previous years, week 3's sales are available and week 4's sales are not a combination of two weeks. Click on the # for that week to view the top 30 albums and singles.

Note: 'Week Sales' means the number of units that the product sold to get to #1 for that week. Usually, this is the product's first week sales, but not always.

#	Date	Single Artist	Single	Week Sales	Album Artist	Album	Week Sales
1	12.27	Hey! Say! JUMP	"Arigatou" ~Sekai no Doko ni Itemo~	150,504	BUMP OF CHICKEN	COSMONAUT	207,160
2	01.03	URATA NAOYA feat. ayumi hamasaki	Dream ON	40,069	Hamasaki Ayumi	Love songs	180,048
3	01.10	Uemura Kana	Toilet no Kamisama	11,327	no3b	no3b	58,730
4	01.17	Uemura Kana	Toilet no Kamisama	22,954	ikimono-gakari	ikimono-bakari ~Members BEST Selection~	39,612
5	01.24	RADWIMPS	DADA	89,951	Sakamoto Maaya	You can't catch me	26,607
6	01.31	Yamashita Tomohisa	Hadakanbo	67,729	Various Artists	EXIT TUNES PRESENTS Vocalonexus feat. Hatsune Miku	31,259
7	02.07	Tohoshinki	Why? (Keep Your Head Down)	231,498	Yamashita Tomohisa	SUPERGOOD, SUPERBAD	101,792
8	02.14	KAT-TUN	ULTIMATE WHEELS	181,494	Yusuke	Ano.. Yume Motemasu Kedo.	79,018
9	02.21	EXILE	Each Other's Way ~Tabi no Tochuu~	100,654	Yusuke	Ano.. Yume Motemasu Kedo.	15,814
10	02.28	AKB48	Sakura no Ki ni Narou	942,479	Yuzu	2 -NI-	90,098
11	03.07	ARASHI	Lotus	541,424	Kuwata Keisuke	MUSICMAN	273,297
12	03.14	Akanishi Jin	Eternal	217,236	Koda Kumi	Dejavu	138,005
13	03.21	SKE48	Banzai Venus	206,608	EXILE	Negai no Tou	480,537
14	03.28	Not yet	Shuumatsu Not yet	159,678	Ketsumeishi	Ketsunopolis 7	87,722
15	04.04	MAXIMUM THE HORMONE	Greatest the Hits 2011~2011	81,013	EXILE	Negai no Tou	41,541
16	04.11	MAXIMUM THE HORMONE	Greatest the Hits 2011~2011	28,981	EXILE	Negai no Tou	34,783
17	04.18	KARA	Jet Coaster Love	122,820	miwa	guitarissimo	40,164
18	04.25	B'z	Sayonara Kizu Darake no Hibi yo	130,195	Yoshii Kazuya	The Apples	37,709
19	05.02	Kanjani8	T.W.L / Yellow Pansy Street	200,816	Oda Kazumasa	Doumo	81,088
20	05.09	Jang Keun Suk	Let me cry	119,149	Amuro Namie	Checkmate!	252,889
21	05.16	PASSPO☆	Shoujo Hikou	42,706	Amuro Namie	Checkmate!	83,114
22	05.23	Kanjani8	My Home	158,060	BIGBANG	BIGBANG 2	65,383
23	05.30	KAT-TUN	WHITE	150,944	FTISLAND	FIVE TREASURE ISLAND	36,980
24	06.06	AKB48	Everyday, Katyusha	1,333,969	Lady Gaga	Born This Way	183,845
25	06.13	B'z	Don't Wanna Lie	168,917	Girls' Generation	GIRLS' GENERATION	231,553
26	06.20
27	06.27
28	07.04
29	07.11
30	07.18
31	07.25
32	08.01
33	08.08
34	08.15
35	08.22
36	08.29
37	09.05
38	09.12
39	09.19
40	09.26
41	10.03
42	10.10
43	10.17
44	10.24
45	10.31
46	11.07
47	11.14
48	11.21
49	11.28
50	12.05
51	12.12
52	12.19