Representatives for the couple have confirmed...
A joint statement issued to UsMagazine.com reads, "We're excited and incredibly happy about our engagement and we look forward to a wonderful future together."
The couple started dating in 2006 shortly after Nick Lachey divorced Jessica Simpson.
The engagement news comes just days before the couple celebrates joint birthdays - Nick Lachey will turn 37 and Minnillo 30 on 9 November (10).
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