He has also appeared as guest vocalist on several albums, including Score to a New Beginning by Fairyland and The Human Contradiction by Delain.

Georg and the newly reformed Serenity's first crucial test took place on 2 August 2004, when they successfully supported Ronnie James Dio in concert.

Georg wrote the album along with fellow band members Thomas Buchberger and Mario Hirzinger, and continued to be the lead vocalist.

The band again called on some guest musicians, including Amanda Somerville of Trillium and Lanvall of Edenbridge, to help in making the album a Serenity masterpiece.

Georg was interviewed for the metal site Nocturnal Euphony International about the new album, saying, "It’s another step forward in our career and we are grateful to all our fans and everybody who’s helping Serenity growing.

Serenity hit the road with bands including Delain, Van Canto, and Xandria, then followed up with a show at the legendary Prog Power USA festival in 2012 in Atlanta, Georgia, US.

The band then embarked in the "Out of the Dark Festival Tour,"[13] again with Van Canto, Xandria, Tristania, and Amberian Dawn.

Serenity continued to tour all over Europe, gaining reputation as a music force within the symphonic metal genre.

Announcement for the official release of the new album came via the band's website, stating, "While staying true to all ‘’Serenity’’ trademarks such as symphonic orchestras, heavy rhythms, amazing melodic vocals & bombastic choirs we also brought in some new elements in form of various new sounds in the ‘’Serenity’’ universe and a constant implementation of female vocals supporting outstanding singer Georg Neuhauser.

"[15] War of Ages was released on 22 March 2013 in Europe and in April across North America and Asia, via Napalm Records.

The music video shows Clémentine in the role of Elizabeth Bathory, as portrayed in the legend, and lead vocalist Georg Neuhauser as her husband, who is off at war.

[20] Besides his musical career Neuhauser is working as a Historian for Medieval and Early Modern Times at the University of Innsbruck.