Mick Jagger's longtime girlfriend Melanie Hamrick revealed they are engaged. Hamrick, 37, shared that she and Jagger, 81 have ...

Mick Jagger's found his rainbow, and he's looking to lock her down for the rest of his life ... because he and his longtime partner Melanie Hamrick are engaged -- and have been for some time.

Following a rather iconic meet-cute that involved the backstage of a Rolling Stones concert in Tokyo, Mick Jagger and his longtime ... As for an eventual wedding? "Maybe one day we'll marry ...

Mick Jagger is engaged ... not been married before, while Jagger was married once to Bianca Jagger from 1971 to 1978. Hamrick noted that there are no concrete wedding plans yet.