Like the other romantic songs on Changes, "That's What Love Is" is sung by Justin Bieber to his wife, Hailey. Here, he tells her he didn't understand what love really meant until they started their relationship. Some characteristics of Hailey's love that he lists include:
You can trust me. After all the lies I told you.
You teach me patience. Like the best of our worlds collide.
My self-esteem gets low. You lift it right up through the ceiling.
During episode 6 of Justin's YouTube docuseries Seasons, we learn that the singer debuted the acoustic ballad at their private wedding reception in Bluffton, South Carolina on September 30, 2019. As a snippet of the song plays, Justin explains, "That's What Love Is" is about the fact that "not everything needs to be physical - I love her without needing to touch her."
Justin wrote the song with regular collaborators Poo Bear and Sasha Sirota, plus Courtney Sills (112's "Peaches and Cream").
"Cruise" climbed from 6-5 on the Hot 100 in its 34th week. In doing so it set a record for the slowest ascent to the Top 5 in the chart's history, which was beaten by Imagine Dragon's "Radioactive" 42-week clamber to #4 three weeks later.