Chris Martin sang opera to improve his voice.

The Coldplay frontman revealed he had “stepped up” his game amid the pandemic as his vocal trainer made him sing opera numbers to build muscle.

According to The Sun’s Weird column, Chris told an American radio station, “I train vocally because I want to improve.

“I’ve had a teacher for a long time, but during the pandemic we stepped it up. A really good way to build those muscles is to try singing opera.

“Right now I’m a very, very good Coldplay singer and a very bad opera singer, but I’m trying.”

The ‘Yellow’ hitmaker’s vocal work comes after the 44-year-old musician claimed the ‘Higher Power’ hitmakers would stop making music in 2025.

Chris said: “Well I know I can tell you that our last real record is going to be out in 2025 and after that I think we’re only going to tour.

“Maybe we’ll do things together, but the Coldplay catalog, so to speak, ends then.”

Interviewer, BBC Radio 2 DJ Jo Whiley, explained that she was not entirely sure if Chris was serious when he dropped the bomb.

She said: “He’s going to be a DJ for the night. We play Christmas songs, we talk about Christmas past, what it’s like now and the future too.

“He’s always very funny and I never know if he’s joking or deadly serious.

“Towards the end of our time together, he shared something quite honest and quite intimate, which was a huge eye-opener.”

Chris previously said the band – which also includes Jonny Buckland, Guy Berryman and Will Champion – will only make three more albums after releasing their ninth album “Music of the Spheres” this year.

He said: “I think in a few albums we will finish making albums.

“It’s not a joke, it’s true, I think after 12 will be the end of our catalog.”