At the age of 17, Shimon became a professional movie actor when he was cast for the leading role of Jamie Duncan, a young teenager enchanted with mythical powers, in the 2000 fantasy fiction film Selkie.

Sick Puppies began their journey to fame after winning the Sydney (Triple J) Unearthed competition, against 3,000 other entries in 2000 with their single "Nothing Really Matters".

Shimon played 725 concerts in 13 countries with The Sick Puppies in the US, UK, France, Netherlands, Switzerland, Germany, Denmark, Sweden, Finland, Russia, Canada, New Zealand, and Australia sometimes with other acts including Evanescence, Breaking Benjamin, Shinedown, Papa Roach, Sevendust, Deep Purple, Nickelback, Korn, Soundgarden, Stone Temple Pilots, Three Days Grace and Mötley Crüe.

In 2011, Shimon returned to the silver screen when he appeared in the horror film "The Day" playing the part of "Boss", a predatory post-apocalyptic cannibal.

[8] In late 2014, Moore co-wrote the song "Wasted Love" which was debuted on The Voice Season 7 and hit #1 on the US iTunes singles chart.

One of the tracks off that album, "All of Me", was selected as the official theme song for WWE's "Tribute to the Troops" and was featured in the opening titles of its broadcast in December.