is a Danish musician, songwriter, and record producer. He gained worldwide fame as the drummer and co-founder of American heavy metal band Metallica. The son and grandson respectively of tennis players Torben and Einer Ulrich, he played tennis in his youth and moved to Los Angeles at age 16 to train professionally. However, rather than playing tennis, Ulrich began playing drums. After publishing an advertisement in The Recycler, Ulrich met James Hetfield and formed Metallica.