Misc: Spring bulb with trumpet shaped yellow flowers?

Questions

In 1953, Clyde McPhatter left the Dominoes to form this group?

In 1958, this Tommy Edwards tune began "Many a tear has to fall"?

In 1962 Robert Zimmerman legally changed his name to what?

In 1965, they had a top ten hit with "You're The One"?

In 1968 this infectious summons to unity was The Rascals last hit?