In 1990 Del sang with a country band, the Waltons. In 1991 Del moved to Sydney, Australia and was a backup singer for her elder sister, Jenny Morris. In 1992 she signed with rooArt records as a solo artist. In March 1993 Del reflected on her version of country music, "If people are closed and unreceptive, they're not going to listen as soon as they hear the word 'country', and that's their problem until they come around. I don't think anything I say is going to affect whether people are going to listen. I just do my thing and hope for the best." Her solo album, What's a Heartache For?, appeared in 1994. It was followed in 1997 by My Own Sweet Time. She won Best Country Album at the ARIA Music Awards of 1998. In January 2019 Shanley released an extended play with her husband James Gillard which they co-produced.
In 1990 Del sang with a country band, the Waltons. In 1991 Del moved to Sydney, Australia and was a backup singer for their elder sister, Jenny Morris. In 1992 they signed with rooArt records as a solo artist. In March 1993 Del reflected on their version of country music, "If people are closed and unreceptive, they're not going to listen as soon as they hear the word'country', and that's their problem until they come around. I don't think anything I say is going to affect whether people are going to listen. I just do my thing and hope for the best." Their solo album, What's a Heartache For?, appeared in 1994. It was followed in 1997 by My Own Sweet Time. They won Best Country Album at the ARIA Music Awards of 1998. In January 2019 Shanley released an extended play with their husband James Gillard which they co-produced.