Demi Lovato’s career goes back to her childhood. She appeared on kids TV show Barney and Friends. When was Demi Lovato on Barney and Friends? Demi Lovato was part of the young cast of Barney …

"Oh, Brother...She's My Sister" is the eighteenth episode from the fourth season of Barney & Friends. As Barney and the children show how family unity can be fun, Baby Bop and BJ are having a disagreement. Their child-like spat results in each vowing not to speak to the other. Barney and the children try to soften their hard feelings by stimulating each to reflect on the positive sides of the other's personality. While Baby Bop and BJ are tussling over the book, "The Baby Sister", written by Tom