In March, the pair released a joint statement confirming their breakup.
"After much thought and consideration we have mutually decided to separate as a couple," the statement read. "We remain deeply connected, loving friends who will continue supporting each other through the next phases of our lives. The enormous amount of love and respect that we have for each other will only increase as we move forward."
Usher and Grace secretly tied the knot while vacationing together in Cuba in September 2015 after nearly 10 years together.
The R&B singer was previously married to Tameka Foster. The exes share two sons together: Usher Raymond V, 11, and Naviyd Ely, 10.
For more on Usher and Grace's separation, watch below.