Brian May opens up about Queen's doubts on having Freddie Mercury as their frontman in their early days: "He did a lot of running around the place and screaming his head off. So we thought, ‘Is this going work?’"

Brian May and Freddie Mercury of Queen.

Brian May has reflected on what it was like working with Freddie Mercury in Queen's formative years.

During a recent Q&A session with The Red Special Guitar Podcast, the legendary guitarist revealed that his band once had their doubts about hiring Mercury as their frontman in 1970.