Billboard Top Hits: 1979 offers a solid cross-section of what was in retrospect a really good year for pop radio. With disco still at its commercial zenith, dance hits like the Village People's "Y.M.C.A.," Anita Ward's "Ring My Bell," and Gloria Gaynor's "I Will Survive" dominated airwaves, but there was also room for everything from power pop classics (the Knack's "My Sharona") to kitschy country epics (the Charlie Daniels Band's "The Devil Went Down to Georgia") as well ? toss in perennials from Blondie's "Heart of Glass" to Rupert Holmes' "Escape (The Pi?a Colada Song)" and you've got a real winner.