Let Me Call You Sweetheart

 is song written by Beth Slater Whitson and featured in the Elements mini-series episodes "Hero Heart" and "Skyhooks II." Princess Bubblegum sang this when she transformed the attacking Fire element into Candy. The newly transformed characters sing this in unison with Princess Bubblegum conducting as they close in on Finn. The opening of "Skyhooks II" briefly features sections of the song.