 Weeks later the group's success broke wide open, with "Aquarius/Let the Sunshine In" from the musical "Hair" topping the Hot 100 for six straight weeks in April and May, and another Nyro song, "Wedding Bell Blues", doing the same for the first three full weeks in November.Their cover of Neil Sedaka's "Workin' On a Groovy Thing" went to No.20 in between.