Best back to back songs from an album released on the radio as a combo

Been listening to a lot of classic rock lately and have heard some Zep and ZZ Top songs that I still love. Both are are on the radio and recognized basically as one long song. ZZ Top has Waitin’ for the Bus/Jesus Just Left Chicago and Zep with Heartbreaker/ Living Loving Maid. Are there any other combos that you all love that I might recognize?