"Walkin' on the sun" - Smashmouth
(newer song but in a retro vein, in fact, I think some of those keyboard notes are much like those in the Door's "Soul. Kitchen" or "When the music's over")
"Heart of Gold" - Neil Young
("Time has come today" by Chambers brothers could have been used on the song "The chamber of 32 doors" by Genesis from the last few days, I uppose I skipped it because it was plural but maybe not the next time)
"Which way you goin' Billy" - The Poppy Family
(actually a pretty darn good song: http://www.oldielyrics.com/lyrics/the_poppy_family/which_way_you_goin_billy.html )