2020 Oricon Number 1 Releases

#1 Singles and Albums in 2020 according to Oricon

From December 18, 2019 to December 16, 2020. 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	12.30	MAMESHiBA NO TAiGUN	Restart	64,334	Various Artists	Fate song material	34,133
2	01.06	BOYS AND MEN	Gattan Gotton GO!	95,327	Buster Bros!!!	Buster Bros!!! -Before The 2nd D.R.B-	43,700
3	01.13	Takeuchi Mariya	Inochi no Uta (Special Edition)	6,875	Katori Shingo	20200101	27,661
4	01.20	Poppin'Party	Initial / Yume wo Uchinuku Shunkan ni!	27,164	Kimura Takuya	Go with the Flow	126,831
5	01.27	SKE48	Souyuutoko Aru yo ne?	289,471	King Gnu	CEREMONY	238,047
6	02.03	SixTONES vs Snow Man	Imitation Rain / D.D.	1,328,206	NCT DREAM	THE DREAM	40,386
7	02.10	STU48	Mubou na Yume wa Sameru Koto ga Nai	287,713	MAD TRIGGER CREW	MAD TRIGGER CREW -Before The 2nd D.R.B-	49,783
8	02.17	SixTONES vs Snow Man	Imitation Rain / D.D.	44,982	Sexy Zone	POP × STEP!?	131,035
9	02.24	SixTONES vs Snow Man	Imitation Rain / D.D.	30,921	Little Glee Monster	BRIGHT NEW WORLD	40,268
10	03.02	Hinatazaka46	Sonna Koto Nai yo	558,219	AAA	AAA 15th Anniversary All Time Best -thanx AAA lot-	115,459
11	03.09	Hey! Say! JUMP	I am / Muah Muah	206,295	BTS	Map of the Soul: 7	376,879
12	03.16	JO1	PROTOSTAR	327,187	NEWS	STORY	115,130
13	03.23	Jaejoong	Brava!! Brava!! Brava!! / Ray Light of Light	45,820	GLAY	REVIEW II ~BEST OF GLAY~	64,106
14	03.30	AKB48	Shitsuren, Arigatou	1,166,598	Johnnys' WEST	W trouble	207,592
15	04.06	Nogizaka46	Shiawase no Hogoshoku	995,683	Kis-My-Ft2	To-y2	190,506
16	04.13	SEVENTEEN	Mai Ochiru Hanabira (Fallin' Flower)	334,417	MAN WITH A MISSION	MAN WITH A "B-SIDES & COVERS" MISSION	19,926
17	04.20	Sandaime J SOUL BROTHERS from EXILE TRIBE	Movin'on	34,962	JUJU	YOUR STORY	54,583
18	04.27	Last Idol	Ai wo Shiru	51,823	INABA/SALAS	Maximum Huavo	59,697
19	05.04	HKT48	3-2	161,785	Akanishi Jin	OUR BEST	25,847
20	05.11	LUNA SEA	THE BEYOND GUNPLA 40th EDITION[THE BEYOND X MS-06LS ZAKUⅡ Ver.LUNA SEA]	6,082	THE ORAL CIGARETTES	SUCK MY WORLD	15,072
21	05.18	HKT48	3-2	7,189	JUJU	YOUR STORY	8,272
22	05.25	millennium parade × ghost in the shell: SAC_2045	Fly with me	7,600	MAN WITH A MISSION	MAN WITH A "REMIX" MISSION	17,231
23	06.01	PassCode	STARRY SKY	7,175	TOMORROW X TOGETHER	The Dream Chapter: ETERNITY	29,482
24	06.08	Walküre	Mirai wa Onna no Tame ni Aru	23,807	Various Artists	Bandori! Girls Band Party! Cover Collection Vol. 4	23,142
25	06.15	Stray Kids	TOP -Japanese ver.-	37,157	milet	eyes	27,037
26	06.22	King & Prince	Mazy Night	518,262	TWICE	MORE & MORE	36,068
27	06.29	KinKi Kids	KANZAI BOYA	187,254	ENDRECHERI	LOVE FADERS	57,083
28	07.06
29	07.13
30	07.20
31	07.27
32	08.03
33	08.10
34	08.17
35	08.24
36	08.31
37	09.07
38	09.14
39	09.21
40	09.28
41	10.05
42	10.12
43	10.19
44	10.26
45	11.02
46	11.09
47	11.16
48	11.23
49	11.30
50	12.07
51	12.14
52	12.21