Marc Mezvinsky and Chelsea Clinton: Engaged

Chelsea Clinton fans can finally celebrate for real.

Months after rumors spread - and were subsequently shot down - that the former First Daughter was engaged to Marc Mezvinsky, Clinton has emailed family and friends with confirmation that she and her longtime boyfriend have agreed to marry.

ABC News obtained a copy of the following email, written by Chelsea and Marc to loved ones on Friday:

"We're sorry for the mass email but we wanted to wish everyone a belated Happy Thanksgiving! We also wanted to share that we are engaged! We didn't get married this past summer despite the stories to the contrary, but we are looking toward next summer and hope you all will be there to celebrate with us."

Mezvinsky and Clinton have known each other for years, ever since his parents (former U.S. congressional representatives Ed Mezvinsky and Marjorie Margolies-Mezvinsky) befriended former President Bill Clinton and current Secretary of State Hillary Rodham Clinton.