"Secret Love Song" is a song recorded by British girl group Little Mix for their third studio album, Get Weird (2015). It features guest vocals from American singer Jason Derulo, who co-wrote the song with Jez Ashurst, Emma Rohan, and Tich. It was produced by Jayson DeZuzio. The group's cover of Derulo's 2015 single "Want to Want Me" inspired him to collaborate with them. "Secret Love Song" is a slow ballad comprising pounding bass and melancholic strings. The lyrics discuss unrequited and forbidden love, while Derulo's verse details his personal experience of having an affair.