Jamie Lynn Spears engaged to Jamie Watson: See the ring!

After dating for three years, Jamie Lynn Spears is now engaged to her 30-year-old boyfriend Jamie Watson. She broke the news over Instagram, surprising her followers with a picture showing her and her big engagement ring.

"Guesssss what??????" she posted as a caption for a picture that shows her and Watson embracing. She later uploaded a picture of just the ring along with the hashtag, "#hedidgood."

Spears, 21, and Watson have been off and on for their three years together, but he recently spilled to the New York Post's Page Six that he was ready to pop the question. "We've been back together for a while now," he said.

This isn't the first time Spears has been engaged. She and the father of her 4-year-old daughter Maddie, Casey Aldridge, had once been expected to marry, but broke up for good in 2010. She and Watson have been dating ever since.

Check out the gorgeous ring Watson picked out for Spears, and congratulations to the happy couple: