Anthology

When “I Want You Back” shot to number one in January of 1970, the Beatles would be announcing their breakup three months later. That same manic energy of teenagers losing their minds at the sight of their musical crushes shifted to these Afro’d teenagers from Gary, Indiana, and 12-year-old lead singer Michael. Nonstop hit singles continued, all of them included in this triple-album retrospective: “ABC,” “The Love You Save,” “I’ll Be There,” “Dancing Machine,” the group’s cover of the Miracles’ “Who’s Lovin’ You,” etc. Casual fans may only recognize 25 percent of what’s here—it wasn’t all magic. But when it was…