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	Kanjani8	365 Nichi Kazoku	158,141	AKB48	Koko ni Ita Koto	601,985
27	06.27	KinKi Kids	Time	150,661	Superfly	Mind Travel	166,473
28	07.04	Maeda Atsuko	Flower	176,967	Nishino Kana	Thank you, Love	178,006
29	07.11	Hey! Say! JUMP	OVER	265,390	Tokyo Jihen	Daihakken	82,396
30	07.18	Not yet	Naminori Kakigoori	156,283	ARASHI	Beautiful World	630,951
31	07.25	Itano Tomomi	Fui ni	90,103	JUJU	YOU	111,560
32	08.01	NMB48	Zetsumetsu Kurokami Shoujo	218,441	JUJU	YOU	71,488
33	08.08	SKE48	Pareo wa Emerald	378,747	B'z	C'mon	272,397
34	08.15	KAT-TUN	RUN FOR YOU	151,782	Kato Miliyah	M BEST	160,011
35	08.22	Kis-My-Ft2	Everybody Go	315,781	Yamashita Tatsuro	Ray Of Hope	104,548
36	08.29	Kanjani8	Tsubusa ni Koi	152,859	SMAP	SMAP AID	282,905
37	09.05	AKB48	Flying Get	1,354,492	YUKI	megaphonic	76,386
38	09.12	Fukuyama Masaharu	Kazoku ni Narou yo / fighting pose	155,405	Hamasaki Ayumi	FIVE	127,024
39	09.19	Sandaime J Soul Brothers	FIGHTERS	83,048	Hamasaki Ayumi	FIVE	30,264
40	09.26	EXILE / EXILE ATSUSHI	Rising Sun / Itsuka Kitto...	201,540	AAA	#AAABEST	66,203
41	10.03	Hey! Say! JUMP	Magic Power	217,661	2NE1	NOLZA	26,334
42	10.10	T-ARA	Bo Peep Bo Peep	49,712	Tohoshinki	TONE	204,980
43	10.17	YUI	Green a.live	55,978	A.N.JELL	A.N.JELL WITH TBS-Kei Kinyou Drama "Ikemen Desu ne" MUSIC COLLECTION	149,818
44	10.24	L'Arc~en~Ciel	X X X	81,414	Kimura Kaela	8EIGHT8	42,698
45	10.31	NMB48	Oh My God!	265,435	Tegomass	Tegomass no Mahou	60,504
46	11.07	AKB48	Kaze wa Fuiteiru	1,300,482	PERSONA4	Never More -Reincarnation: PERSONA4-	26,869
47	11.14	ARASHI	Meikyuu Love Song	530,469	YUI	HOW CRAZY YOUR LOVE	131,771
48	11.21	SKE48	Okey Dokey	382,802	KinKi Kids	K album	151,531
49	11.28	Sexy Zone	Sexy Zone	172,925	Kanjani8	FIGHT	253,524
50	12.05	French Kiss	Saisho no Mail	133,662	KARA	Super Girl	275,206
51	12.12	KAT-TUN	BIRTH	193,584	Perfume	JPN	226,858
52	12.19	AKB48	Ue kara Mariko	1,198,864	JIN AKANISHI	TEST DRIVE featuring JASON DERULO	108,602