These were the Top 10 hits in America this week in 1968

The charts were a spooky mix of blue, green, lemon and "beinz."

Ah, just look at those record covers, a swirl of primary colors. The Sixties peaked in 1968, in a sense. So much associated with the decade — hippies, social unrest, psychedelia, flower power, Vietnam, the Apollo program — came to dominate pop culture and news headlines. In short, it was the year the Beatles wrote, recorded and released "Revolution."

That being said, "Revolution" did not crack the Top 10 on U.S. pop charts. The songs below did.

The following ten tracks topped Billboard's Hot 100 in late February 1968. It's a weird mix than you might expect, even by 1968 standards. One-hit wonders, bubblegum rock, film themes, stone cold soul classics and syrupy instrumentals all rubbed shoulders. Let's take a look and listen.

1. Paul Mauriat And His Orchestra - "Love Is Blue (L'amour Est Bleu)"

Easy listening, at the peak! Paul Mauriat's familiar lilt holds a special distinction, and not just for being an instrumental at No. 1. It is the only song by a French artist to top the Billboard Hot 100. Alas, Daft Punk's "Get Lucky" could only manage to make it to No. 2 in the States.

2. Dionne Warwick - "(Theme From) Valley of the Dolls"

The bestselling 1966 novel and hit 1967 film Valley of the Dolls continued to dominate all media with this lovely ballad. It was like the Fifty Shades of Grey of the 1960s, which would make Dionne Warwick the Beyoncé of the decade. And that's about right.

3. Classics IV - "Spooky"

This list is filled with songs that ring a bell — performed by forgotten bands. Though it reads like a volume of greatest hits, Classics IV was indeed the group's name. Was there a more "1968" lyric than the rhyming of "groovy" with "movie"? The slinking rhythm did indeed groove, especially when the sax solo breezed in.

4. The Temptations - "I Wish It Would Rain"

We are now firmly in the soul section of this Top 10, where its strength lies. This melancholy strut opens with the sound of screaming seagulls and climaxes with a gale of strings.

5. Otis Redding - "(Sittin' On) The Dock Of The Bay"

Far and away the biggest song here, "Dock of the Bay" shockingly peaked at No. 5. This was its best week on the charts. Who needs chart validation when you have Redding's sweet, sweet voice. And those whistles. It beats meditation. They melt us every time.