John Mayer Admits One of His 'Search for Everything' Songs Is Too Painful to Perform Live

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John Mayer poses for a portrait in New York on June 27, 2017.

"There's a line in there that is so brutal because it's so true and I can't play the song live because I don't think I'd make it through it."

In an interview with SiriusXM Radio's The Highway on Monday, John Mayer admitted the song "Never on the Day You Leave" off his newest album, The Search For Everything, is about heartbreak he went through with a past ex and it's still too painful to perform live. 

While Mayer didn't mention any particular name (the singer has dated an array of high-profile celebrities including Taylor Swift, Jennifer Aniston and Katy Perry), he was brutally honest about the difficult time he was going through while writing the song. 

"Not long ago, I ran into my ex," he told SiriusXm's Buzz Brainard. "It was very amicable. And I had this beautiful moment where I said, 'A lot of it's me.' A lot of it is in my head, you know. Like, something happened to me and it's just the way I work. It's the way my mind is and I took it really hard. And that took a long time to be able to admit."

Mayer continues to say that the song only took him 20 minutes to write, his emotions pouring into his music effortlessly. But despite his deep connection to the song, Mayer doesn't think he'd be able to get through a live performance without breaking down.

"There's a line in there that is so brutal because it's so true and I can't play the song live because I don't think I'd make it through it," Mayer said.

The line reads: "She'll fight for you like hell, then force herself to like some other man." The Grammy-winning artist explained that women will give 100 percent to any relationship they are in but once that loyalty isn't returned they'll find someone else to make them happy. 

"Every time I sang that line, I would cry in the middle of that line," he said. "It took me days and days and days to be able to sing that line for the record, and get through it without crying."