The Independent Online has an interesting reflection on the things we maybe don’t remember about 1967 and the summer of love:

But such artists as The Seekers are as much a part of the summer of 1967 as The Beatles, and their vast record sales cannot be entirely explained away by their appeal to a middle-aged public. The fact that “Georgy Girl” was the theme song to a popular film certainly boosted its success. It also garnered the only known Oscar nomination for a member of the Carry On team; the lyrics were by Jim Dale.
But this was also the year that Engelbert Humperdinck’s “Release Me” beat the best double-A side in pop history, “Strawberry Fields/Penny Lane”, to No 1 in the hit parade, Vicky Leandros sang a much-hummed Eurovision entry, “L’amour est bleu”, and Des O’Connor entered the Top 10 with “Careless Hands”.
1967: The truth about the summer of love – Independent Online Edition > This Britain