I logged a couple days' worth of WCBS-FM's playlist and came up with just over 400 songs. They're playing two songs from the 1960s: the Beatles' "Twist and Shout" (1964, but re-released in 1986 after being featured in "Ferris Bueller's Day Off"), and Steppenwolf's "Born to Be Wild" (1968). The years with the most playlist entries are 1983 to 1985. The artists with the most number of songs being played are Madonna and Michael Jackson, each with 11 songs being played. The two newest songs they're playing are Uncle Kracker & Dobie Gray's remake of "Drift Away" from 2003, and Robin Thicke's "Blurred Lines" from 2013 (which borrows heavily from Marvin Gaye's 1977 hit "Got to Give It Up"). Also Kate Bush's "Running Up That Hill", if you count it as a current hit that just happened to take 38 years to reach its peak chart position!