"That's What Love Is For" is a song by American singer-songwriter Amy Grant. It was written by Michael Omartian, Mark Mueller, and Amy Grant and produced by Omartian. It was released as the fourth single from Grant's ninth studio album, Heart in Motion (1991). There are two versions of the song: the album cut and the pop radio edit. For pop radio airplay, the strings were removed and the song was remixed with a new rhythm track.
Upon its release, the single topped the BillboardAdult Contemporary chart for three weeks and peaked at No. 7 on the Billboard Hot 100, finishing at No. 91 on the 1992 Billboard year-end ranking. In Canada, the song reached No. 1 on the RPM 40AC (Adult Contemporary) chart, as well as No. 7 on the RPM 100 Hit Tracks chart.
A music video was produced to promote the single, and mixes shots of Grant wearing a red cloak and singing to the camera, while other shots of her singing are in black and white. The music video was filmed at the Craters of the Moon National Monument and Preserve in Idaho. It also features a male/female couple, sitting together on a bench but not looking at each other. At the 3:12 mark of the video (just after Grant sings the bridge leading into the last chorus), the couple are seen in black and white, holding each other loosely while the music plays and Grant sings. The video fades out on a shot of Grant singing ad-libs in front of a sepia-toned background. Off in the distance is the man, and further off, presumably the woman. Behind them all are four large letters which spell the word "LOVE".
There are two versions of this video. One version has additional shots of Amy. One where she is in a giant, tall green dress. Another shot shows a black & white close up of Amy in a very retro-mod hair style.
