Delta Goodrem says she's 'extremely thankful and lucky' as she opens up about engagement to longtime boyfriend Matthew Copley

Delta Goodrem is all smiles as she shows off her huge diamond engagement ring - after long-term boyfriend, and guitarist, Matthew Copley popped the question to her

Australian celebrities Sophie Monk, Rebecca Judd and Samantha Jade lead engagement congratulations for Delta Goodrem and longtime boyfriend Matthew Copley

Keeping it under wraps! Delta Goodrem removes her diamond engagement ring as she lands back in Sydney with longtime boyfriend Matthew Copley - after the pair got engaged on holiday in Malta