sentences:  In addition to the vocal jazz and/or 1960s swing music, many of these singers were involved in "less swinging," more traditional, vocal pop music during this period as well, namely Sinatra and Cole.With the growing popularity of rock and roll in the 1950s, much of what baby boomers considered to be their parents' music, traditional pop, was pushed aside.Popular music sung by such performers as Frank Sinatra, Dean Martin, Ella Fitzgerald, Peggy Lee and their contemporaries was relegated in the 1960s and 1970s to television, where they remained very popular, Las Vegas club acts and elevator music.