In America, the name Agnetha Fältskog might not register to most people, but in much of northern Europe, and especially Sweden, she’s a major, major celebrity. One of the four members of ABBA ...

Every Friday, pop critics for The New York Times weigh in on the week’s most notable new songs and videos — and anything else that strikes them as intriguing. Cher, ‘Gimme! Gimme! Gimme! (A Man After ...