"Forever by Your Side" is a romantic song written and produced by the American songwriters and music producers Marc Blatte and Larry Gottlieb. The song was recorded by American popular R&B vocal group the Manhattans and was the title track of Forever by Your Side, released in 1983 by Columbia Records. The song "Forever by Your Side" was released as a single and had moderate success in the US, peaking at number 30 on the R&B chart.

In contrast to the small American reception, "Forever by Your Side" was a big hit in Brazil. The song was included on the soundtrack of a Brazilian soap opera called A Gata Comeu, produced and shown on television by the broadcaster Rede Globo, the world's second largest television network, between the months of April and October 1985, two years after its release.

"Forever by Your Side" was the second single, released after "Crazy", a bigger hit for the Manhattans.

The success of the song in Brazil spawned a Portuguese version, called "Pra Sempre Vou Te Amar". The lyric was written by Brazilians Guto Angelicci and Carlinhos Kalunga, first recorded by the Brazilian singer Adriana in 1986. This version was very successful in Brazil, and was covered later by the duo of Brazilian brothers Wilson & Soraia in 1995, whose recording was included on the soundtrack of Brazilian soap opera Irmãos Coragem in the same year.

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