NBC has announced their celebrity lineup for Season Two of Who Do You Think You Are
Potential Spoiler for one of the episodes:
Nfuyrl Whqq vf n qrfpraqnag bs Gubznf naq Xngurevar Fgbhtugba. Gurl qba'g unir gb vairfgvtngr gung oenapu bs gur pryroevgl'f naprfgel, ohg gur frrzvatyl haraqvat yvfg bs abgnoyr pbhfvaf gb cerfrag gb ure zvtug or gbb grzcgvat gb cnff hc, rira gubhtu gur vasb vf nyernql bayvar. V jbaqre vs gurer jvyy or nal "fhecevfr thrfg fgnef" ba gung rcvfbqr? (Use Rot13 to decode, if you wish to know beforehand.) (source) (more info)
I'm looking forward to the opening episode on January 21. I may end up DVRing it, though, since it is my birthday.
Update: NBC's announcment adds Gwyneth Paltrow to the list, who the other sources didn't name, so I have added her name above. Also...the premiere seems to have been pushed back to February 4th. So it's no longer a birthday present for me, but maybe I am less likely to be busy during the premiere.