"It Must Be Love" is a song by American country music singer Ty Herndon, taken from his third studio album Big Hopes (1998).

The song, penned by Craig Bickhardt and Jack Sundrud and produced by Doug Johnson, was released on July 27, 1998, as the second single from the album.

The song, written by Craig Bickhardt and Jack Sundrud, features the narrator of how he finds himself acting uncharacteristically, unable to control his emotions, because he is in love.

The song spent 26 weeks on the chart and would be Epic Nashville's final number one single until 2004 when Gretchen Wilson would reach the top spot with "Redneck Woman".

[6] "It Must Be Love" would also peak at number 38 on the Billboard Hot 100, giving Herndon his sole top-forty entry on that chart.