Dillon's second album, Sweet Liberty (2003), entered the Irish album charts and UK Indie album charts. In 2004, Dillon received the Meteor Irish Music Award for Best Irish Female. Her third album, After the Morning, was released in 2006. The album's opening track “Never in a Million Years” gained Radio 2 Airplay, while other tracks featured the Czech Philharmonic Orchestra and Paul Brady. Also in 2006, Dillon sang at the opening of the Ryder Cup in Ireland.
