John Mayer Photo: John Mayer was on Jimmy Kimmel talking about his tour, his latest album "Paradise Valley" and his love for Katy Perry. He also talked about how quiet people are at his concerts because of fans posting concert photos on Instagram. Mayer is starting to wear suits again, got a hair cut and is cleaning up quite well. He talked about being with Katy Perry and working with Frank Ocean. He also talked about his throat surgery and having to have botox shot into his neck to help the problem. For the last segment of Mayer on Kimmel and a performance click here!