Love is such a strange thing

The boys build an amusement park for St. Valentines Day.

Songs
Love is such a strange thing

Crazily Crazy

Perry the Platypus theme song

Tori the Timber Wolf theme song

Monogram's suprized at you (,Perry)

The "Too Young" line
Couple: Hey, arent you a bit too young to be hosting an amusement park for the day of strong love?

Phineas: Yes, yes we are.

Ferb's line

 * After Vicky's theme song plays* Yes, today was crazily crazy.

Song references
Gitchee-Gitchee-Goo means that I love you plays during the episode about 4 times.