There are multiple possibilities:

1. This is correctly tagged for a band called Arne.

2. This is correctly tagged for the Swedish musician with the artist-name Arne. This Arne is also the same Arne behind Jens Und Arne and also Farbror Arnes blockflöjtsensemble. He's also member of the bands: Rosa Ätpinne, Äggzkülls and The Arne-Vision Dansorkester with friends featuring Patrick the Hattrick.
He's also behind the pseudonym biberkolben

3. arne is a japanese math rock band. 岐阜県発 男女ツインボーカルマスロックバンド。
Vo/Gt.ひらめ、Gt/Vo.ワオシュン、Dr.ギガメロンから成るarne。
The cabsや宇宙コンビニ、American Football等に影響を受けた彼らは、ニッチなジャンルであるマス(数学的)ロックを、Gt/Vo.ワオシュンの描く小説の一部を切り取ったような世界観や叙情的な旋律を用いて独自に噛み砕く。Vo/Gt.ひらめの透き通った儚い声、緊張が漂う変則的なリズムにダイナミックな展開を持ち合わせ、キャッチーさを失わない。
arne consists of Vo/Gt. Hirame, Gt/Vo. Waoshun, and Dr. GigaMelon
Influenced by The cabs, Uchu Conbini, American Football, etc...

4. This is mistagged for Thomas Arne; it would help Last.fm if you could correct your tags. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.