Freddie Mercury critic Eduardo Rivadavia describes "Mr. Bad Guy" as "outstanding from start to finish" and expressed his view that Mercury "did a commendable job of stretching into uncharted territory". In particular, the album is heavily synthesiser-driven in a way that is not characteristic of previous Queen albums. His second album, "Barcelona", recorded with Spanish soprano vocalist Montserrat Caballé, combines elements of popular music and opera. Many critics were uncertain what to make of the album; one referred to it as "the most bizarre CD of the year". The album was a commercial success, and the album's title track debuted at No.
Barcelona (Freddie Mercury and Montserrat Caballé song) rather than forced tenor, which was common in his other recordings. The song has been described as a rare textbook example of a combination of pop and opera singing which accentuated their differences. Whereas Mercury articulates his every word, Caballé focuses on the tone; her lines are much harder to comprehend, and further, she uses both English and Spanish languages. Consequently, she keeps her part melodic throughout all the song at the expense of the text, whereas Mercury has to resort from singing to nearly shouting at the crescendo part in order to deliver his words. Mercury was reportedly amazed