Jan. 13 (UPI) --
Evan Ross has already described Ashlee Simpson
as "the one,"
so news of their engagement comes as no surprise.
The 25-year-old son of Diana Ross tweeted a photo of himself and Simpson wearing her ring on Monday afternoon, writing, "The love of my life said YES!!!!!!"
Simpson, 29, tweeted the same photo.
Simpson has a 5-year-old son, Bronx Mowgli, from her previous marriage to Fall Out Boy rocker Pete Wentz
. They divorced in 2011.
Ross and Simpson went public with their relationship last July. Ross has a part in the next Hunger Games films, Mockingjay Part 1 and Mockingjay Part 2.
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