Brian Austin Green proposed to longtime girlfriend Megan Fox on June 1. Megan's rep confirms the news.

A witness says that he saw Megan Fox "jumping up and down" after Brian's beachside proposal at the Four Seasons hotel in Hawaii and the witness says "Later a half dozen staff [were sifting] through the sand." That's cause Megan lost the friggin' ring!!!!!!!!!!! What a nightmare.

Megan and Brian picked out the 2-carat ring together in Beverly Hills. Security and maintenance staff spent hours looking for it but the ring has yet to be found.

Green, 36, and Fox -- who next stars in Jonah Hex (out June 18) -- began dating in 2004 but called off their previous two-year engagement in February 2009.

I don't care enough to say 'Congrats!' but I will say that Megan will be a gorgeous bride if she and Brian actually walk down the aisle this time. Brian is getting too much milk for free. Buy the friggin' cow already dude.