There are at least four artists named Erika.
1) Erika Sawajiri (沢尻エリカ) who goes by ERIKA for her music releases, is a Japanese actress, model,…

ONE OK ROCK are a Japanese Rock band formed in the summer of 2005. They were started by Toru with High School friends Alex and Ryota after…

There are at least 7 artists named Sid:

1) SID (also written as シド) is a Japanese rock band that formed as a visual kei band in 2003 and is…

the GazettE is a Japanese visual kei and nu metal band formed in Kanagawa in 2002. The band formed as Gazette (ガゼット), an intentional misspelling…

Formed in 1991, L'Arc～en～Ciel is one of the most popular rock bands from Japan. The band consists of vocalist and guitarist hyde, leader and…

QWER is a four-member girl band under 3Y Corporation and Tamago Production, which was founded by YouTuber and CEO Kim Egg as the 최애의 아이들…

There is more than one artist / band / group with the same name.

1. Girlfriend was a five-girl pop group from Australia, formed in 1991. Their debut…

Asian Kung-Fu Generation (アジアン・カンフー・ジェネレーション Ajian Kanfū Jenerēshon, stylized as ASIAN KUNG-FU GENERATION) are a Japanese alternative rock band…

LAREINE was a visual rock band from Japan founded in 1994 by KAMIJO and MAYU. They were known for expressing a romantic French-inspired concept…

Refers to many artists:

1.
The group's base was created in 1993 when brothers Kōshi (elder: vocals) and Take (younger: guitar) began playing…

BUCK-TICK are a Japanese rock band, originally formed by Imai Hisashi in 1983 in Gunma, Japan. The classic lineup of lead vocalist Atsushi Sakurai,…

UVERworld (ウーバーワールド) is a Japanese rock band known for their mixture of musical genres such as hard rock, electronic, and beat-boxing. UVERchan,…

MIYAVI, (born Takamasa Ishihara (石原貴雅) in Konohana-ku, Osaka, Japan on September 14, 1981) is a Japanese singer-songwriter, guitarist, record…

There is more than one artist with this name.
1) Nightmare is a Japanese visual rock band Naitomea, see ナイトメア.
2) Nightmare is a French Power…

Plastic Tree is an alternative rock band from Chiba, Japan that was formed in December 1993 by 有村 竜太朗 (Arimura Ryutaro) and Hasegawa…

There are at least 2 known bands with this name:
1. An alternative rock band from Japan
2. An alternative rock band from Slovakia

1. the pillows…

Porno Graffitti (ポルノグラフィティ, Poruno Gurafiti) is a Japanese two-piece rock band. The band got their name from the album Extreme II: Pornograffitti…

Radwimps is a Japanese rock band that formed in their first year of highschool in 2001 in Kanagawa, Japan. They play an eccentric mix of rock,…

ORANGE RANGE, オレンジレンジ, is one of the most popular rock/pop/R&B groups from Okinawa, Japan. They were formed in 2001 by NAOTO and KATCHAN. They…

GACKT (大城 ガクト, Ōshiro Gakuto, born July 4, 1973, Okinawa, Japan) is a singer-songwriter, musician, actor and author, famous in Japan. Since the…

Shocking Lemon is a Japanese band that formed in 1996. In 1999, they released their maxi-single Pastel Room and went on a tour named after the…