The 3-4 defense the Broncos used in the 70s was nicknamed Orange Crush.
70s 80s is not very clear firstly. Is it 70s or 80s or 70s/80s? My only suggestion is Creedence Clearwater Revival and that you are thinking of 'Proud Mary'. NOTICE USE OF QUOTES TO HIGHLIGHT title.
Rich Karlis of the Denver Broncos in the 80s was one of the barefoot kickers. Tony Franklin, who kicked with the Eagles, Patriots, and Dolphins in the 80s was another, as was Mike Lansford of the Rams in the 80s.
70s man
The Denver Broncos were founded in 1959.
Denver Broncos was created in 1960.
The Broncos play in Denver, Colorado.
Peyton Manning is currently with the Denver Broncos.
The Denver Broncos QB currently is Peyton Manning.
The Denver Broncos are called the broncos because the origanal AFL team held a contest in 1960 and the Broncos was the winning entry.
Dog
I love the Denver Broncos but there nickname is the "Donkeys" :)