29-year-old Ashlee Simpson dusted off her rarely-used Twitter account yesterday for quite a special announcement: she’s officially engaged to her beau, Diana Ross’ son, Evan Ross! Evan tweeted the news as well, both sharing a photo the pair had just taken with Ashlee’s new ring, a gorgeous vintage piece. So happy for these two! Ash was previously married to Pete Wentz, who she was with from 2008-2011. They have one son. Check out Ashlee and Evan’s tweets in the gallery, as well as a side-by-side comparison of her rings. Which do you like the best?