The Denver Broncos don't have an 'anthem' per say, and neither does any other NFL team.
In 1977 a song titled Make those Miracles Happen was recorded by a member of the Denver Broncos named John Keyworth in what would seem a prophetic ballad, as the team went to their first Super Bowl that season. An article about it is linked to below in the 'related links' section of this answer.
There was a 'Super Bowl Rap' that was popularized during the 1980s for the Broncos.
Kanye West produced a song about the Broncos as well, and it too is linked to below in the 'related links' section of this answer.
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" :)
1960
Denver Broncos 13655 Broncos Parkway Englewood, Colorado 80112 (303) 649-9000
Quanterus Smith is number 69 on the Denver Broncos.
Duke Ihenacho is number 33 on the Denver Broncos.