"Must Be A Reason Why" is a song by American MC J. Pearl, released as a single in the United Kingdom on August 2, 2011 and in other European countries on October 3, 2011. The single features vocals from British singer Shayne Ward.
"Must Be A Reason Why" was produced by Lucas Secon, and was written by Secon, Chris Brann and Mintman. The song samples Wamdue Project's 1997 dance track, "King of My Castle". The track was originally recorded with Ward as the main artist, and J. Pearl being credited as the featured vocalist, and included on Ward's third studio album, Obsession. The single was announced for release in January 2011, but prior to its release, Ward was dropped from his record label, Syco Records, preventing the release occurring. However, Pearl's record label, Simply Delicious, offered to release the single on Ward's behalf if he let Pearl be credited as the main vocalist. Ward agreed, and thus, the track was remixed by producer Guy Kastav, and prepared for release in August 2011. The single was later issued across Europe on October 3, 2011, with Italy being the only country to receive a physical release.
The music video for "Must Be A Reason Why" was shot at Portland Place, London, and directed by director Andy Hylton. It premiered on June 15, 2011, via Simply Delicious' YouTube account, at a total length of two minutes and forty seconds. The video consists of Pearl and Ward searching for each other in a nightclub, and performing the song amongst the crowd. The video received its first television aiplay on Starz on Friday, June 17, 2011.