The song was written by the duo and follows a similar template of most of their hits for other artists, except with a slight 1980s inflection to the music.

The accompanying music video for "Solid" is set on a rainy afternoon in a park.

Valerie Simpson exits a taxi in a park on a cloudy day, and escapes from a sudden downpour underneath a bridge.

As she sings the opening of the song a cappella, Nick Ashford arrives and joins in.

As the video progresses, they are joined by others, including a cyclist in yellow spandex, a gang who just want to sing, and several bongo players, also trying to escape the downpour.