"That's When I Love You" is the title of a song co-written and recorded by American country music

Country music

Country music is a popular American musical style that began in the rural Southern United States in the 1920s. It takes its roots from Western cowboy and folk music...

 artist Phil Vassar

Phil Vassar

Phil Vassar is an American country music artist. Vassar made his debut on the country music scene in the late 1990s, co-writing singles for several country artists, including Tim McGraw , Jo Dee Messina , Collin Raye , and Alan Jackson Phil Vassar (born May 28, 1964 in Lynchburg, Virginia) is an...

. It was released in October 2001 as the fifth and final single to his 2000 self-titled debut album Phil Vassar

Phil Vassar (Album)

Phil Vassar is the self-titled 2000 debut album from American country music artist Phil Vassar. It features the singles "Carlene", "Just Another Day in Paradise", "Rose Bouquet", "Six-Pack Summer" and "That's When I Love You". All of these, except "Rose Bouquet", charted in the Top Ten on the...

. It peaked at #3 on the Hot Country Songs

Hot Country Songs

Hot Country Songs is a chart published weekly by Billboard magazine in the United States.This 60-position chart lists the most popular country music songs, calculated weekly mostly by airplay and occasionally commercial sales...

chart, and #37 on the Billboard Hot 100 chart. Vassar co-wrote this song along with his former wife Julie Wood-Vassar. They both also wrote one of his other singles "The Woman In My Life", which was a top 20 hit in 2006.

Chart positions

"That's When I Love You" debuted at #51 on the U.S. Billboard Hot Country Singles & Tracks for the week of November 3, 2001.

Chart (2001-2002)	Peak position
U.S. Billboard Hot Country Singles & Tracks	3
U.S. Billboard Hot 100	37