Instruct: Classify the given review as either positive or negative.
Query: Elvis Rockin'

Jailhouse Rock is a true classic of the Rock 'n' Roll genre. The movie features a great performance by Elvis. Elvis performs some of his best rock 'n' roll tunes: "Jailhouse Rock" "Treat Me Nice" "Baby I Don't Care" "Young And Beautiful" "Don't Leave Me Now"