Thurston Moore and Kim Gordon began dating in 1981 and founded Sonic Youth the same year. They got married in 1984 and welcomed their only daughter, Coco, 10 years later. Their relationship seemed like it would last a lifetime, like it was just too big to fail. Alas, alt-rock hearts around the world were broken in 2001 when the two announced not only the end of their marriage, but the disbandment of Sonic Youth, too — it was like your parents telling you they were getting divorced and that you couldn't live with either of them.