Yes, I know: I just spoke to Carter Bays a couple of months ago, right before How I Met Your Mother's season finale. But there was so much news coming out about the show over the summer -- The Bro Code, a wedding, self-contained episodes, Regis -- that I felt I had to speak to him again before the fourth season started on Sept. 22.

(Well, I actually wanted to talk to both Carter and his show-running partner Craig Thomas, but, as usual, the mystery man was elsewhere. I've met him more than once, though, so I know he does exist.)

Anyway, I could have spoken to Bays at the CBS press tour party in July, but I wanted to get a bit more in depth, so we arranged a phone interview; that took place a couple of weeks ago, right after the third episode of the fourth season wrapped. He was a bit more evasive about those topics than he's been in the past, but he still provided me some good information about the upcoming season, the "haunting" singing voices of his male stars, and what it's like to see his show being played on an airplane. Interview is after the jump.