Sharing a photo and video to Instagram of the two dancing with her new ring on display, the 30-year-old actress wrote: "I never thought one of the best days of my year would happen the last week of the year. I get to marry my best friend. So excited to become your wife. D&D until the end."
Brooks was bombarded with congratulatory messages from her famous friends, including Octavia Spencer, Gabrielle Union, Amber Riley and Janelle Monae.
This isn't the first time Gelin has been featured on Brooks' Instagram. Back when she was pregnant, she posted a video of him being hooked up to a contraction simulation machine so he could feel what she was feeling. Despite the pain, it was clear these two had a lot of love for one another.