He's introducing a song about his wife and describing the conversation he had with her...
Jon Auer:"So I've written a song about you and it's called Angelita"
Jon Auer pretending to be his wife:"Mother f*&$r!"
JAPTBHW: "Mother F#(*&r!!!!"
JA: "WHAT BITCH?"
JAPTBHW: "MOTHER F$#@!r! My name is MICHELLE!"
JA: "Bitch! There's already a song called that, Michelle, by the Beatles. HEARD OF IT??"
JA: "So that was okay"
X-Posted to overheard in melb.