Phineas and Ferb

Comet Kermillian

When Jeremy asks Candace to come with him to the park, Candace excitedly agrees -- until she learns that Suzy, Jeremy's little sister, is coming too. The next thing Candace knows, she is being dragged through the park and doing everything she can to escape the... more wrath of Suzy. Meanwhile, "Phineas and Ferb" build a telescope in the backyard, while Doofenshmirtz tries to come up with a way to liquefy steak.

Vote for your favorite "Phineas and Ferb" musical number at DisneyXD.com and DisneyChannel.com.

"Phineas and Ferb's Musical Cliptastic Countdown" airs Monday, Oct. 12, at 8 p.m. ET/PT on Disney XD.
"Phineas and Ferb" airs on Disney Channel and Disney XD.

(Disney Channel)