Zinc were an Australian three piece pop rock band, composed of three singer-songwriters: Adam Ray and the O'Shea brothers: John and Mark they formed in 2002.
[1][2] In 2002 John Barry O'Shea moved from Dalby to join his brother on co-lead vocals, keyboards and guitar and the trio formed a rock pop group, Zinc.
From early 2003 Zinc based themselves in Los Angeles for 18 months and worked with Mark Hudson, an American producer, and provided backing vocals for an album by Ringo Starr and one by Steven Tyler.
[8] In June and July they supported US pop group, Hanson, on the Australian leg of their Live and Electric Tour.
Other than being very talented songwriters that know how to piece together a catchy tune; brothers Mark (acoustic guitar) and John (guitar/keyboards) O'Shea, and their mate Adam Ray (tambourine) also had good looks and all the right moves on their side as they alternated vocal duties".