John Mayer took to Twitter on his ex’s Taylor Swift birthday to proclaim that her day of birth “may be the lamest day of the year.”

The 39-year-old singer quickly deleted the tweet, but fans of course screenshot the message so there is evidence floating all over social media.

“Tuesday, December 13 may be the lamest day of the year, conceptually,” John wrote in the tweet.



Taylor and John dated briefly from November 2009 until February 2010 and their relationship inspired the song “Dear John.”