Nicole and Joel Are Engaged!

Nicole Richie and Joel Madden are finally engaged! Nicole made the announcement Monday night while appearing on 'The Late Show with David Letterman'.

She confirmed on her Twitter page, "Yep. I'm engaged. Very happy. Yeah we've been engaged for a while so your all kind of late on that. But Thanks for the hooplah all the same."

Nicole Richie, best known for starring alongside Paris Hilton in 'The Simple Life', and Joel Madden of Good Charlotte have been dating for three years. The recently engaged couple have two children together - 2 year-old daughter Harlow and 5 month-old son Sparrow.

Congrats!