Katy Perry and John Mayer is officially no pair anymore. 

There's no other details on what happened or why the "Dark Horse" singer's decision was made but Mayer was noticeably absent from Perry's side on her recent trip to London and Milan. She returned home to Los Angeles on Friday.

 

Despite some early ups and downs, the pair became fast Hollywood's hottest couple! 

They sweetly gushed about each other in interviews and collaborated on the song "Who You Love," off of Mayer's latest album, Paradise Valley.