Johnny Depp is engaged!

He's given his openly bisexual girlfriend, Amber Heard, some major bling, and the two are planning to wed.

"They couldn't be happier to be engaged and excited to share the rest of their lives together," a source told People.

The news is a stunner for long-time watchers of the often eccentric Depp.

He had a 14-year relationship with French actress Vanessa Paradis, with whom he has two children, and in 2010 told Extra they had no reason to marry.