Confession: I don't really know what Kendall and Kylie Jenner are famous for.

From ONTD:

Aspiring “authors” Kendall, 18, and Kylie, 16, arrived for their book signing at Barnes & Noble at the Grove in Los Angeles, where they posed with the novel for three minutes, scowled and refused to answer questions, then sat down for their obligatory book signing with all the enthusiasm of teenagers in a summer school algebra class.

Photographers stood in awe as security staffers surrounded the pair just minutes later, declaring “the signing is over.” Barnes & Noble organizers plead in vain for the girls to fulfill their duties, but no dice.

ETA: I have now educated myself by reading their Wikipedia pages. Yay.