List of number-one digital singles of 2018 (Japan) explained

This is a list of songs that reached No. 1 on the Billboard Japan Digital Track Chart in Japan in 2018.

Chart History

Issue date	Song	Artist(s)	Ref
Jan. 1	"Mabataki" (瞬き, Blink)	Back Number	^[1]
Jan. 8			^[2]
Jan. 15	"Hero"	Namie Amuro	^[3]
Jan. 22	"One Day"	Ryuji Imaichi	^[4]
Jan. 29	"Here Comes My Love"	Mr. Children	^[5]
Feb. 5			^[6]
Feb. 12	"Party All Night~Star of Wish~"	Exile	^[7]
Feb. 19	"Here Comes My Love"	Mr. Children	^[8]
Feb. 26	"Lemon"	Kenshi Yonezu	^[9]
Mar. 5			^[10]
Mar. 12			^[11]
Mar. 19			^[12]
Mar. 26			^[13]
Apr. 2			^[14]
Apr. 9			^[15]
Apr. 16			^[16]
Apr. 23			^[17]
Apr. 30			^[18]
May 7	"Play a Love Song"	Hikaru Utada	^[19]
May 14	"Kiss Is My Life."	SingTuyo (Shingo Katori & Tsuyoshi Kusanagi)	^[20]
May 21	"Lemon"	Kenshi Yonezu	^[21]
May 28			^[22]
Jun. 4	Loser		^[23]
Jun. 11	"Play a Love Song"	Hikaru Utada	^[24]
Jun. 18			^[25]
Jun. 25	"Tatakau Senshi-tachi e Ai o Komete" (闘う戦士たちへ愛を込めて)	Southern All Stars	^[26]
Jul. 2	"Lemon"	Kenshi Yonezu	^[27]
Jul. 9			^[28]
Jul. 16			^[29]
Jul. 23	"U.S.A."	Da Pump	^[30]
Jul. 30			^[31]
Aug. 6	"Bōen no March" (望遠のマーチ)	Bump of Chicken	^[32]
Aug. 13	"U.S.A."	Da Pump	^[33]
Aug. 20			^[34]
Aug. 27	"Ambivalent" (アンビバレント)	Keyakizaka46	^[35]
Sept. 3	"Idea" (アイデア)	Gen Hoshino	^[36]
Sept. 10			^[37]
Sept. 17	Black Bird	Aimer	^[38]
Sept. 24	"Ai no Katachi" (アイノカタチ)	Misia	^[39]
Oct. 1	"Hero"	Namie Amuro	^[40]
Oct. 8	"Sirius" (シリウス)	Bump of Chicken	^[41]
Oct. 15	"Lemon"	Kenshi Yonezu	^[42]
Oct. 22	"Adamas"	LiSA	^[43]
Oct. 29	"Hanashi ga Shitai yo" (話がしたいよ)	Bump of Chicken	^[44]
Nov. 5	"Lemon"	Kenshi Yonezu	^[45]
Nov. 12	"Flamingo"		^[46]
Nov. 19	"Old Fashion" (オールドファッション)	Back Number	^[47]
Nov. 28			^[48]
Dec. 3			^[49]
Dec. 10	"Hanaka Necromancy" (徒花ネクロマンシー)	FranChouChou (フランシュシュ)	^[50]
Dec. 17	"Flamingo"	Kenshi Yonezu	^[51]
Dec. 24			^[52]
Dec. 31	"Prologue" (プロローグ)	Uru	^[53]

Notes and References

1. Web site: Billboard Japan Top DL week 1 . https://web.archive.org/web/20171230172305/http://www.billboard-japan.com/charts/detail?a=dlsongs&year=2018&month=01&day=1 . dead . 2017-12-30 .
2. Web site: Billboard Japan Top DL week 2 .
3. Web site: Billboard Japan Top DL week 3 .
4. Web site: Billboard Japan Top DL week 4 .
5. Web site: Billboard Japan Top DL week 5 . https://web.archive.org/web/20190216135740/http://www.billboard-japan.com/charts/detail?a=dlsongs&year=2018&month=01&day=29 . dead . 2019-02-16 .
6. Web site: Billboard Japan Top DL week 6 .
7. Web site: Billboard Japan Top DL week 7 .
8. Web site: Billboard Japan Top DL week 8 .
9. Web site: Billboard Japan Top DL week 9 .
10. Web site: Billboard Japan Top DL week 10 .
11. Web site: Billboard Japan Top DL week 11 .
12. Web site: Billboard Japan Top DL week 12 .
13. Web site: Billboard Japan Top DL week 13 .
14. Web site: Billboard Japan Top DL week 14 . https://web.archive.org/web/20190505171432/http://www.billboard-japan.com/charts/detail?a=dlsongs&year=2018&month=04&day=2 . dead . 2019-05-05 .
15. Web site: Billboard Japan Top DL week 15 .
16. Web site: Billboard Japan Top DL week 16 .
17. Web site: Billboard Japan Top DL week 17 .
18. Web site: Billboard Japan Top DL week 18 . https://web.archive.org/web/20180902013637/http://www.billboard-japan.com/charts/detail?a=dlsongs&year=2018&month=04&day=30 . dead . 2018-09-02 .
19. Web site: Billboard Japan Top DL week 19 .
20. Web site: Billboard Japan Top DL week 20 .
21. Web site: Billboard Japan Top DL week 21 .
22. Web site: Billboard Japan Top DL week 22 .
23. Web site: Billboard Japan Top DL week 23 .
24. Web site: Billboard Japan Top DL week 24 .
25. Web site: Billboard Japan Top DL week 25 .
26. Web site: Billboard Japan Top DL week 26 .
27. Web site: Billboard Japan Top DL week 27 .
28. Web site: Billboard Japan Top DL week 28 .
29. Web site: Billboard Japan Top DL week 29 .
30. Web site: Billboard Japan Top DL week 30 .
31. Web site: Billboard Japan Top DL week 31 .
32. Web site: Billboard Japan Top DL week 32 .
33. Web site: Billboard Japan Top DL week 33 . https://web.archive.org/web/20180811102105/http://www.billboard-japan.com/charts/detail?a=dlsongs&year=2018&month=08&day=13 . dead . 2018-08-11 .
34. Web site: Billboard Japan Top DL week 34 .
35. Web site: Billboard Japan Top DL week 35 .
36. Web site: Billboard Japan Top DL week 36 .
37. Web site: Billboard Japan Top DL week 37 .
38. Web site: Billboard Japan Top DL week 38 .
39. Web site: Billboard Japan Top DL week 39 .
40. Web site: Billboard Japan Top DL week 40 .
41. Web site: Billboard Japan Top DL week 41 .
42. Web site: Billboard Japan Top DL week 42 .
43. Web site: Billboard Japan Top DL week 43 .
44. Web site: Billboard Japan Top DL week 44 .
45. Web site: Billboard Japan Top DL week 45 .
46. Web site: Billboard Japan Top DL week 46 .
47. Web site: Billboard Japan Top DL week 47 .
48. Web site: Billboard Japan Top DL week 48 .
49. Web site: Billboard Japan Top DL week 49 . https://web.archive.org/web/20190506192539/http://www.billboard-japan.com/charts/detail?a=dlsongs&year=2018&month=12&day=3 . dead . 2019-05-06 .
50. Web site: Billboard Japan Top DL week 50 .
51. Web site: Billboard Japan Top DL week 51 .
52. Web site: Billboard Japan Top DL week 52 .
53. Web site: Billboard Japan Top DL week 53 .