Elvis Presley wasn't just the King of Rock & Roll. He remains Billboard chart royalty. On the anniversary of the birthday on Jan. 8, 1935, of the late icon (who passed away on Aug. 16, 1977), here's a look back at five of his most impressive chart records. - 108 Billboard Hot 100 hits, the most among rock artists in the chart's history. Among all acts, only the "Glee" cast (207) and Lil Wayne (120) have inked more charted hits. Presley's career, however, predates the Hot 100's 1958 inception; he charted more than 30 song entries on surveys that chronicled popular music beginning in 1956. The King's 104th Hot 100 hit, "Way Down," originally peaked at No. 31 the weeks of Aug. 6 and 13, 1977. After dipping to No. 53, following Presley's death, the song roared 35-24-21-18, marking his last top 20 track. - 80 top 40 Hot 100 hits, the most such showings in the tally's archives. Drake ranks second with 64, followed by Elton...