Metallica drummer Lars Ulrich is probably used to his ears ringing, but now he's hearing wedding bells.

The Las Vegas Informer reports that Ulrich and his girlfriend, model Lisa Miller, recently celebrated their engagement at the N9NE Steakhouse at Palms Casino Resort, where they threw a party for friends and family that included Ulrich's son and Miller's father.

It'll be the first marriage for Miller, who was previously engaged to Incubus singer Brandon Boyd; Ulrich has been married twice and parted ways with longtime girlfriend Connie Nielsen in 2012.

No word yet on when the happy couple intends to tie the knot, but they'll need to make room for some big events on Ulrich's schedule -- including the upcoming premiere of Metallica's first movie, 'Metallica: Through the Never,' which is heading for IMAX screens on Sept. 27. On July 19, the band will appear at Comic-Con in San Diego for a Q&A session about the movie and then play a "secret" show.

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