John Mayer Shares Emotional Message with Those Who Have 'Lost Everything' in 'Devastating ... Perry's Hilariously Relatable Reaction to Seeing Ex John Mayer at Sabrina Carpenter's Concert Exes ...

Mayer, 47, had a brief romance with Taylor Swift, 34, from late 2009 until early 2010 and she is believed to have written a number of songs about him- including her 2010 track Dear John.

John Mayer is sharing a message ... "When you hear someone say they've lost everything in a fire, this is much of that everything, if not all of it," Mayer wrote. "Those who say they'll be okay ...

John Mayer has an emotional message for the victims of the Los Angeles wildfires. On Thursday, Jan. 9, the songwriter/guitarist, 47, empathized with those who have "lost everything" in an ...