"It Must Have Been Love" (IMHBL) is a pop song written by Per Gessle. It is the Swedish pop duo Roxettes's most commercially successful single and its best-charting and selling release in the United States. It rivals "The Look" as the song most closely associated with the Swedish duo. <br /><br />Though not originally part of any Roxette album, that "It Must Have Been Love" was released as a single in 1990 from the soundtrack to the hugely popular film Pretty Woman ensured its success. <br /><br />Also, it was a close follow-up to the group's single "Dangerous," which spent two weeks at No. 2 on the Billboard Hot 100 in February of that same year.
