Kind of an odd thing to happen is when 2 songs off the same album become fused with each other.There's 2 different types,the first is more like an intro to a song.Some examples are "Foreplay" and "Long Time" by Boston as well as "Eruption" and "You really got me" by Van Halen. 
    The second type are 2 completely seperate,full length songs like "Waiting for the bus" and "Jesus just left Chicago" by ZZ Top or "Heartbreaker" and "Living, Loving Maid" by the mighty Led Zeppelin.
    When these songs are played on the radio,99.9% of the time they're played together.What are some other "2 for 1" songs?