UncleScoopyofCE
does the best for me for Britney traffic (as I have such), because you can use a FPA with Britney mainly on it, and with some good additional wording you get nice signups. You get paid (weekly) $25/3 day free trial, or $55/active member or 60% recurring (signup once for all their programs).
You can also try this celeb site with Britney included in banners:
CelebritiesHotel
you get paid $35/trial or $80/active member (there is a 5 day trial).
