"Guess What" is a song by American recording artist Syleena Johnson from her second studio album, Chapter 2: The Voice.

Written and produced by R. Kelly, the song was released as the album's second single on August 20, 2002.

[1] It became Johnson's first number-one single as a lead artist in the US, peaking at number one on the Adult R&B Songs chart and staying there for four non-consecutive weeks.

[3] The song was believed to have been written about Johnson's relationship with her then husband Marcus Betts.

"[4] "Guess What" is a "danceable and happy" funk-soul and R&B song, which is layered over a gospel beat that runs for three minutes and thirty-two seconds.

[6][7] "Guess What" is written in the key of D-flat major and is set in common time with a moderate dance groove with 82 beats per minute (BPM).

"Guess What" was first released in the United States, where a promo-only 12-inch single was issued to radio airplay in May 2002.

Officially released to retailers by August and radio in October 2002,[10] the song debuted on the US Hot R&B/Hip-Hop Airplay chart.