According to the Recording Industry Association of America Queen have sold 34. The only friend I've got is Mary and I don't want anybody else. Bad Guy debuted in the top ten of the UK Album Charts.
In addition to his work with Queen he led a solo career and also occasionally served as a producer and guest musician (piano or vocals) for other artists. Mercury was a Parsi born in Zanzibar and grew up there and in India until his mid-teens. In 2005 a poll organised by Blender and MTV2 saw Mercury voted the greatest male singer of all time.