I share sentiments with most of the folks who have posted here.  "We'll Sing In The Sunshine" was an important tune from my early teens (I still remember holding that tinny little transistor up to listen carefully).  It's still a great song, and the whole album is great.  I noticed a couple things on careful listening to the two versions of "Sunshine".  The arrangements are quite similar, although the sound quality on the remake (which was on the original album) is better, the other one sounds like AM.  More interesting is that the lyrics are a bit different.  In the original, reference is to "I'll stay with you one year" and "I'll kiss you every night".  On the album, it was "I'll live with you one year" and "I'll love you every night".  Some things you just couldn't say on radio back then, I guess.  Even for an album, this was more than a bit risque for the early 60s.