From the first day of 1960 through the last day of 1964, here is the first half of this decades No. 1 hits in the USA, according to Billboard. To travel through all .<br>From the first day of 1965 through the last day of 1969, here is the second half of this decades No. 1 hits in the USA, according to Billboard. To travel through all .<br>From the first day of 1970 through the last day of 1974, here is the first half of this decades No. 1 hits in the USA, according to Billboard. To travel through all .
