# Oliver Hartmann

> German singer

**Wikidata**: [Q69544](https://www.wikidata.org/wiki/Q69544)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Oliver_Hartmann)  
**Source**: https://4ort.xyz/entity/oliver-hartmann


## References

1. Integrated Authority File
2. International Standard Name Identifier
3. MusicBrainz
4. Freebase Data Dumps. 2013
5. [Source](http://www.oliverhartmann.com)
6. YouTube API