Adam Lambert was "floored" watching Rihanna perform.

Speaking to Laura Whitmore for The Hot Desk, she said: "I like Rihanna's Instagram page because she's so fun to look at. She's so gorgeous. I went to her concert in Detroit a few weeks ago. It was the night before I had a concert there.

"I knew it was going to be a great show anyway because I know the songs, but I was blown away. It was such a good show ... the design and everything was really gorgeous and she delivered some vocals! I was floored ... I was really impressed, actually."

Meanwhile, when it comes to his own music, the 34-year-old singer has been performing with Brian May and Roger Taylor of Queen for the last few years and says it has given him "a great confidence".

He shared: "[It has given me] a great confidence. Public reaction to the group's concerts [have been] wonderful and the tour gave me the opportunity to make myself known to more people."

When asked if he feels differently about performing with a group rather than solo, he added: "I would not speak of different emotions but of different ways to approach the show. With the Queen I have to be really exaggerated, bordering on the ridiculous, even the costumes, because it is the music that requires it, I have to be drawn into the role.

"In my tour instead [I] explore the current fashion and dance and I can express my creativity. I have taken care of every single aspect of the show."