There are at least 4 artists under the name The Observer:

1. An ambient post-hardcore band from Montville, New Jersey, United States.

The band released their album Real Eyes in 2017. Their EP Otherside was released in 2021.

facebook.com/theobserverband
twitter.com/TheObserverBand
instagram.com/theobserverband

2. Born in 1951, Montego Bay, Jamaica, Winston “Niney” Holness, or “Niney the Observer,” was one of the premiere Jamaican producers of the 1970s. Under the tutelage of producer Bunny Lee, and later Lee “Scratch” Perry, Niney crafted what would become his signature “Observer” sound.
Biography:

3. The Observer/D'ubserver – Real name Sylvio N. Heres.
Born and raised in the Netherlands, owner and creative force behind the net label TerraLogica Recordings.

In this game for over 20 years.Since summer of 2008 Heres is producing all kinds of electronic music mainly releasing under the monikers The Observer focusing on Techno/Down-Tempo/House and D'ubserver where the aim is a more conventional output focused on reggae.

Unusual, unconventional a typical nonconformist...
Bottom line this guy marches to the beat of a different drummer...

His own drum.... Terra-rista for life

4. A metal band from Saint Cloud, Minnesota, United States. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.