Boys liked garageband music and hated bubblegum, but that doesn't mean that the music was any different--just the image, and the marketing--and yes, "Mendocino" was a teenbopper hit--and, because of that, a lot of people never got the fact that Doug Sahm and company had a great band--

"Little Black Egg" was by the Nightcrawlers, featuring Dick Bartley, who would, much later, host American Top 40--it isn't in the Billboard Hot 100 book, because, though it was a national hit, it hit the charts at different times in different regions, and therefore never broke 100--it is in the Bubbling Under book though--if you can't find it, PM me with your email address--

"Contrived" is an interesting concept--in retrospect, a lot of the hip, alternative 60's music sounds very different than we thought--a lot of the bubblegum stuff has "folkie" chord progressions, as opposed to pop chord progressions, and some of the teenybopper idols started out as folksingers, too--