It’s honestly surreal to me all these years later. I still remember the day Phineas and Ferb premiered, and I was sitting on my couch watching the show with my dad. Now here I am, years later, covering it and speaking to the very stars I used to listen to. It’s wild as well – and wow, I am feeling so old, but in a good way.

Tisdale tells PEOPLE about motherhood and more at the Bush's Bluey Baked Beans launch event at CAMP in New York City