"Nobody Knows" is a song by R&B artist Tony Rich from his 1996 debut album Words. Released as his debut single, the song peaked at #11 on the soul singles chart. Elsewhere, "Nobody Knows" went to #2 on both the Billboard Hot 100 (only behind Celine Dion's "Because You Loved Me") and Hot Adult Contemporary Tracks charts. Rich received a nomination for the 1997 Grammy Award for Best Male Pop Vocal Performance; he lost to Eric Clapton's "Change the World".

-US CD Single (73008-24116-2)

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American country music artist Kevin Sharp recorded a cover version of the song on his 1996 debut album Measure of a Man. It was released in September 1996 as his debut single. It became Sharp's only number-one single on the Billboard Hot Country Singles & Tracks charts, spending four weeks at the top of the chart.

Deborah Evans Price, of Billboard magazine reviewed the song favorably, saying that his "smooth, melodic voice and sensitive interpretation of the lyric signal show promise for this talented new artist.""

The music video was directed by Jeffrey Phillips and premiered in late 1996.

"Nobody Knows" debuted at number 75 on the U.S. Billboard Hot Country Singles & Tracks for the week of September 28, 1996.

In 1997, saxophonist Richard Elliot covered the song from his album "Jumpin' Off."Eli Mattson delivered a piano/vocal cover on the third season of America's Got Talent in 2008. British boyband JLS also recorded a cover of the song; it was leaked onto the internet in June 2010 and has now appeared as the B-Side to their single She Makes Me Wanna. British pop singer Shayne Ward included a cover on his third album, Obsession. The song is featured on the Boyzone album, BZ20, released in November 2013.

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