Please note that this is the same band that was sometimes billed as "Dawn featuring Tony Orlando" or occasionally simply "Dawn". The group "Dawn" had no existence independent of Tony Orlando, and you should *not* create a new artist entry for them. (There have been other bands named Dawn, most notably a Swedish death metal band, but they definitely never recorded "Knock Three Times" or "Tie a Yellow Ribbon". Accept no substitutes.)
Tony Orlando and Dawn was an American pop music group that was popular in the 1970s. Their signature hits include "Candida", "Knock Three Times", "Tie a Yellow Ribbon Round the Ole Oak Tree", and "He Don't Love You (Like I Love You)".