"Swear to Your Heart" (also titled "Caught in Your Web (Swear to Your Heart)") is a song recorded by Air Supply lead singer Russell Hitchcock in 1990. The song was written by Diane Warren. It is a track from the soundtrack album of the 1990 film Arachnophobia. The song features Timothy B. Schmit on backing vocals.
"Swear to Your Heart" was released as a CD single, and became a hit on the U.S. and Canadian Adult Contemporary charts, reaching number 9 and number 12 respectively, during early 1991.