ROCK-A-RAMA

Anyone who savored Robert Plant’s great performance of Elvis Presley’s “Little Sister" on Concerts For The People Of Kampuchea will be delighted to know he’s released an EP of roots rock. Now for the bad news: most of it’s junk. Joined by Jimmy Page, Jeff Beck, Nile Rodgers, and other uncredited helpers, Plant spoils the occasion because he treats most of the songs like throwaways.