George Martin produced some of the most popular and influential albums of modern times – 'Sgt. Pepper's Lonely Hearts Club Band,' 'Revolver,' 'Rubber Soul,' 'Abbey Road' – elevating rock LPs to art forms.
Taylor Swift's performance was marred by sound problems. Ditto for Adele and Alice Cooper. But Stevie Wonder killed "That's The Way of the World" with the Pentatonix. Lady Gaga's Bowie tribute was a visual wonder.
Natalie Cole's greatest success came with her 1991 album, "Unforgettable ... With Love," which paid tribute to her father with reworked versions of some of his best-known songs, including "That Sunday That Summer," ''Too Young" and "Mona Lisa."