In a recent radio interview with Scot Fox of the 97.9 WCPR Rocks station, Rob Halford, frontman of veteran British metal act Judas Priest, discussed meeting Lady Gaga in London and why he would love to collaborate with the "absolutely sensational" pop star.

"I was in a hotel in London the other day and Gaga was two floors above me," Rob said. "Needless to say, security was really, really tight. We didn't really get to see each other again that day, 'cause she was super busy."

He continued: "But let me tell you: that lady is a heavy metal maniac. She loves Priest, she loves Maiden, she loves Motorhead, all of these kinds of heavy metal bands that have been roaring on throughout the decades; she's a big fan of all of them.

"When I met her, I think it was last year in San Diego, where I'm hanging out these days, we immediately bonded. She's just this wonderfully talented lady with a spectacular voice.

"You know, you have to cut through a lot of the visual stuff with Gaga and then get to what her voice is about. For me, as a singer, as a fellow singer, she's absolutely sensational and I would love at some point to do something with her. I don't know if ever that's gonna happen, but it's on my bucket list."

Lady Gaga first met Rob Halford backstage at her artRAVE: The ARTPOP Ball show last year in San Diego and described it as "the greatest moment ever."