how did they promote it?
The BBC television program "The Old Grey Whistle Test" aired a clip of the live band performing the nine-minute title track as an act of promotion.
Bat Out of Hell
The BBC television program "The Old Grey Whistle Test" aired a clip of the live band performing the nine-minute title track. 
who sings bat out of hell with meatloaf UNANSWERABLE is it a song? No, It is a studio album when was it released? October 1977 who composed it? Composer Jim Steinman. how was it It  is one of the best-selling albums of all time.
wiki:13350538
Bat Out of Hell [SEP] Release and promotion
The BBC television program "The Old Grey Whistle Test" aired a clip of the live band performing the nine-minute title track. According to "Classic Rock," the response was so overwhelming that they screened it again the following week. They later invited the band to perform "Paradise" live. "As a result, in the UK, 'Bat' became an unfashionable, uncool, non-radio record that became a 'must-have' for everyone who heard it, whether they 'got' Steinman's unique perspective or not." Meanwhile, in North America, according to Billboard Magazine, Popovich and his partners began promoting the album aggressively, first getting radio play in Omaha, Neb., Cleveland and New York.