Dallas, is a country and Irish singer and former Fianna Fáil member of Westmeath County Council.
A few years later he joined the Sailors Showband, and got his break in 1978 replacing John Glenn in The Mainliners, the backing band for Big Tom.
In June 1980, Allen exploited the hype around the Dallas soap opera's "Who shot J.R.?"
Later that year his cover version of Mac Davis' "It's Hard to Be Humble" reached number 6 in the Irish charts.
He continued to tour Ireland and the UK in the 1980s and 1990s, releasing further singles and an album.