Listen to S.I.M.P. (Squirrels in My Pants) online. S.I.M.P. (Squirrels in My Pants) is an English language song and is sung by Little Apple Band. S.I.M.P. (Squirrels in My Pants), from the album Kids Songs! Fun Children's Music from Sesame Street, Phineas and Ferb and More!, was released in the year 2012. The duration of the song is 1:35. Download English songs online from JioSaavn.