Heart are a 5-piece 70s stadium rock group fronted by the sisters Ann (vocals) and Nancy Wilson (guitar). The band went three name changes before eventually settling on Heart in the early 70s; the final name change ties in with the sisters joining who, it seems to me, were the key to the band’s success.
Bad Animals was the band’s ninth studio album and, despite me not knowing Heart at all (not that I’m saying I have a huge knowledge of 70s/80s pop stadium rock, but I feel like I’d have least have heard of them), this album was their most successful record in the UK and in actual fact went platinum. The albums before this one were all very well received in the US and Canada and according to the band’s website they have sold over 35 million albums to date.