The British singer has been linked to Alex Partakis since early last year (14) and he popped the question on Thursday night (21May15).
Taking to Twitter.com to announce the news, Range writes, "Delighted to share the news that my gorgeous @alexpartakis proposed last night! Am the happiest girl alive and can't wait to be Mrs HP".
Meanwhile, her new fiance tweeted, "Am the happiest man in the World today. @Heidi_range said yes! Can't wait to spend the rest of our lives together".
Range, 31, was previously engaged to British TV presenter Dave Berry, but they split in 2011 after eight years together.