It’s like “Red is the color of an apple, orange is the color of an orange …” Auli’i shared, not remember the name of “The Rainbow Song” from Barney & Friends.

Harking back to her first on-screen job, Gomez wrapped things up with a sing-along of the “Barney & Friends” theme song. Up to that point, things had been relatively tame.

The theme song for Barney’s World is a nod to the original tune viewers know and love, but with an updated melody and lyrics. Mattel knows that being a kid can come with big emotions, and it is ...