For you search query 70S Greatest Love Songs we found around 100991 songs. We may show you only some of them on this page. Have you compiled that perfect love songs playlist for your Valentine's night? If you haven't, then don't expect any help from this list by The NY. The most unforgettable love songs from the 70s. How Deep Is Your LoveBee Gees • Greatest. 3. MandyBarry Manilow • Barry Manilow II.