Wiktionary (0.00 / 0 votes) Rate this definition: fusion (Noun). The merging of similar or different elements into a union. fusion (Noun). A nuclear reaction in which nuclei combine to form more massive nuclei with the concomitant release of energy. fusion (Noun).
Todd Rundgren, Doing His Best to Win the Longest Song Award (Photo by Kevin Winter/Getty Images) Back in November of 1971, Led Zeppelinâs record label, Atlantic, released a promotional single of âStairway to Heavenâ to radio stations. At eight minutes long, it found occasional late-night play on AM radio. With that as inspiration, weâve compiled a list of the Top 10 Longest Rock Songs We Can Remember.
2,019,187 Contributions. Led Zeppelin IV was the band's most musically diverse album.   Stairway to Heaven was the first song to play on FM in the United States, becoming an immediate radio hit.â¦ Stairway to Heaven is the most played song in the history of album-oriented radio; the song was never released as a single.