"Blame It on the Rain" is a song written by Diane Warren and performed by the German dance-pop group Milli Vanilli. It was released as a new track from the group's North American debut album, Girl You Know It's True (1989), and did not appear on All or Nothing (1988), their debut album in other regions. An extended remix of the song did appear on The U.S.-Remix Album: All or Nothing (1989), which served to release the new tracks included on Girl You Know It's True that did not appear on All or Nothing outside of North America.

The song is written in the second person, and the protagonist is advising the listener to "blame it on the rain" and other natural elements after leaving their lover and regretting it. The song topped the US Billboard Hot 100, becoming Milli Vanilli's third and final single to do so. It also reached the top 10 in Australia, Canada, and New Zealand, as well as in several European countries. In the United Kingdom, the song did not enter the top 40, peaking at number 52.