KENNY ORTEGA GUEST STARS IN A NEW MUSICAL EPISODE OF "PHINEAS AND FERB," FRIDAY, JANUARY 28 ON DISNEY CHANNEL

"Rollercoaster The Musical!" - In this musical, Phineas and Ferb revisit the day they built their gigantic rollercoaster. Using a combination of music, song and dance, Phineas and Ferb build a rollercoaster in their backyard, Candace tries to bust them by getting their mom to return from the grocery store early, and Dr. Doofenshmirtz attempts to pull the Eastern Seaboard to the west using tinfoil and a giant magnet. Choreographer Kenny Ortega ("High School Musical") makes a guest appearance as himself.

This episode of "Phineas and Ferb" airs FRIDAY, JANUARY 28 (8:00-8:30 p.m., ET/PT) on Disney Channel.

"Phineas and Ferb" stars Vincent Martella as Phineas Flynn, Thomas Sangster as Ferb Fletcher, Ashley Tisdale as Candace Flynn, Mitchel Musso as Jeremy, Caroline Rhea as mom Linda Flynn-Fletcher, Richard O'Brien as dad Lawrence Fletcher, Dee Bradley Baker as Perry the Platypus, Alyson Stoner as Isabella, Jeff "Swampy" Marsh as Major Monogram and Dan Povenmire as the nefarious Dr. Doofenshmirtz. "Phineas and Ferb" is a production of Walt Disney Television Animation.

Guest starring is director/choreographer Kenny Ortega ("High School Musical") as himself.

"Rollercoaster The Musical!" was written by Scott Peterson and directed by Dan Povenmire.

"Phineas and Ferb" carries a TV-G parental guideline.