Demi Lovato is opening up more about child stardom - and some of the difficulties that came with it. The Heart Attack singer had an open and honest discussion with fellow child star Keke Palmer on the latter's Baby, This Is Keke Palmer podcast on Tuesday. While the icons may have acted on different networks (Demi on Disney Channel and Keke on Nickelodeon), they had more than a few things to relate on... namely, in Keke's words, the networks "always pitting" stars against one another to crown the "number one girl.