Yvonne Ann Gregory (born Yvonne Ann Burgess; Her first stage appearance was as an eight-year-old ingenue in the pantomime Babes in the Wood at a local miners' welfare institute, and at the age of nine she won first prize in a national poetry competition. At the age of 11 she won the Carrol Levis and His Discoveries talent show and thereafter changed her stage name to "Jackie Trent", having lived in Stoke-on-Trent for the previous few years. "Where Are You Now" reached number one in the UK singles chart in 1965, topping the chart for one week. It reached number three in Canada. The song was featured in the popular TV series It's Dark Outside. The song was written and recorded in just four days after Hatch was asked by Granada TV to produce a song for the female lead in the programme to be seen on screen playing to herself. The lyrics were written by Trent in December 1964, just before she embarked on a three-month tour of South Africa. The song reached number one in May 1965, replacing the Beatles' "Ticket to Ride".

Petula Clark's 1966 hit, "I Couldn't Live Without Your Love" was inspired by the ongoing affair between Trent and Hatch, and they subsequently went public with their relationship. In August 1967 they were married in Kensington. In addition to their compositions for Clark, over the years she and Hatch wrote extensively for other artists, including Frank Sinatra, Dean Martin, Jack Jones, Nancy Wilson, Des O'Connor, Val Doonican, The Montanas, Shirley Bassey, and Vikki Carr.

In 1968 the couple also wrote the song "Joanna", a hit for Scott Walker.

In the late 1960s, Trent returned to the stage with a UK tour of the musical Nell, playing Gwynne opposite Hermione Baddeley as the title character. The show opened at the Richmond Theatre for a season in 1970.

1970s

In 1970, Trent recorded the Les Vandyke-composed "I'll Be Near You" and in March that year she appeared on the cover of the British music magazine NME. The 1970s saw Hatch and Trent diversify into the world of musical theatre. The first of their projects, The Card, based on Arnold Bennett's novel, with book by Keith Waterhouse and Willis Hall, ran in London's West End with Jim Dale and Millicent Martin in the starring roles.

The second Hatch/Trent musical was Rock Nativity, with book and lyrics by David Wood. Initiated and produced by Cameron Mackintosh, it first played in Newcastle upon Tyne. An updated version of the show toured nationally in 1976, and was broadcast nationally by Scottish TV. A full-length concert version was also recorded at the Cork Opera House for transmission by RTÉ. The couple wrote the theme for the game show Mr and Mrs for Border Television which was used from 1975.

Theme to Neighbours

After Trent and Hatch relocated to Australia in the 1980s, they were asked to write the theme song for the television soap-opera Neighbours. The theme was written and recorded in a day and Trent said "We called in Barry Crocker at about 10pm to put his voice on it and it was on the producer's desk by 10am the following morning. And they loved it, so the series was then called Neighbours." Prior to her death, she had been scheduled to appear in Jackie in May 2015.

Personal life

When Trent and Hatch married in August 1967, Hatch already had two daughters from his first marriage. The couple went on to have a son and daughter together. They separated in 1995 and divorced in 2002. Hatch later married Maggie Clough in May 2005, living with her in Spain. She died in hospital on 21 March 2015, aged 74, in Menorca, Spain, after a long illness.