It's been an unforgettable Valentine's Day for Christina Aguilera.

The singer and "The Voice" coach is engaged to longtime boyfriend, Matthew Rutler, she announced on Twitter Friday (Feb. 14). Aguilera shared a photo of her ring, writing, "He asked and I said......"

He asked and I said...... pic.twitter.com/XWZVZOjDX1

- Christina Aguilera (@xtina) February 15, 2014

Aguilera, 33, has been dating production assistant Rutler since 2010 after meeting him on the set of the film "Burlesque."

She was previously married to Jordan Bratman from Nov. 2005 until Oct. 2010, with the pair coincidentally finalizing their divorce on Valentine's Day 2011. They share custody of 6-year-old son Max Bratman.