Worlds Collide

The new season of Mad Men premieres this Sunday, and the season opens at Thanksgiving 1964 (so I have read). That means the reality of the show is now in the era of full-on Beatlemania (they hit the US in the winter of that year, and their first movie came out in August).
Who will be the first Beatle fan among the show's characters? Keep in mind, most adults of the time didn't concede any talent to the group until later, after "Yesterday" and albums like Rubber Soul were released.

I think we can rule out any of the real "grown ups", like Don, Betty, and Joan. Peggy is likely to want to be seen as being a serious career woman, so I don't think she's going to reveal herself as a fan, and she probably doesn't care.

Last seen dancing in Season One

Obviously, Roger Sterling's taste runs toward minstrelsy, though maybe his child bride Jane will tell him not to change the channel when they're on the radio.

Paul Kinsey might have an inclination toward the fab four later, but now I see him as a Coltrane and Dylan guy.

Pete and Trudy Campbell could be the dark horses of the group--they can be surprising.

Maybe gay German Kurt--he could have seen them in Hamburg in the early days, when he was friends with Astrid Kirchherr and Klaus Voorman (speculation).

But the one character who I will bet will be the show's representative Beatlemaniac is:

Sally Draper!