Brian and Delta announced in April that they have gone their separate ways, after four years together.
The pair issued a statement saying that the decision to end their relationship was a mutual one:
"Delta Goodrem and Brian McFadden regretfully announce that they are no longer engaged, and after much consideration, have mutually decided to end their relationship.
"This decision has been made with a lot of soul searching from both parties with the realisation that they have grown apart."
The couple met in 2004 when they sang together on Brian's single, Almost here, and got together in 2007 after McFadden's marriage to Kerry Katona was over.
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