Gotta Make Summer Last

 is a song used in "Leave the Busting to Us!", "That Sinking Feeling", and "Phineas and Ferb Interrupted". It seems to play whenever the characters are on any sort of waterslide.

Lyrics
Summer, I love summer,

Give me that summer time,

Summer, every 86,400 seconds that pass...

Gotta make summer last!

Background Information

 * 86,400 seconds equals 24 hours or one day. 104 days of summer would be 8,985,600 seconds.
 * In the Spain version of the episode "That Sinking Feeling", this song is replaced by an instrumental version.

Appearances

 * "Leave the Busting to Us!"
 * "That Sinking Feeling"
 * "Phineas and Ferb Interrupted"

Songwriters

 * Danny Jacob
 * Janis R Liebhart

BMI Work # 11275347