According to People, Van Halen, 53, proposed to his 38-year-old girlfriend while on vacation in Hawaii on August 4. The two plan to wed next June.
A source said, "They are happy, healthy, very much in love and looking forward to living life together forever."
This will be the second marriage for the guitarist. He was previously married to actress Valerie Bertinelli, with whom he has one son, Wolfgang.