This is a list of singles that reached number one on the Cash Box Top 100 Singles chart in 1991, presented in chronological order. +KeyIndicates best-performing single of 1991
Issue date Song Artist January 5 "Justify My Love" Madonna January 12 January 19 January 26 "Love Will Never Do (Without You)" Janet Jackson February 2 "The First Time" Surface February 9 "Gonna Make You Sweat (Everybody Dance Now)" C+C Music Factory featuring Freedom Williams February 16 February 23 "All the Man That I Need" Whitney Houston March 2 March 9 "One More Try" Timmy T March 16 "Someday" Mariah Carey March 23 March 30 "Coming Out of the Dark" Gloria Estefan April 6 April 13 "I've Been Thinking About You" Londonbeat April 20 "Baby Baby" Amy Grant April 27 May 4 May 11 "Joyride" Roxette May 18 "Here We Go" C + C Music Factory Featuring Freedom Williams & Zelma Davis May 25 "Rhythm of My Heart" Rod Stewart June 1 "I Don't Wanna Cry" Mariah Carey June 8 "More Than Words" Extreme June 15 June 22 "Rush Rush" Paula Abdul June 29 July 6 July 13 "Unbelievable" EMF July 20 July 27 "Right Here, Right Now" Jesus Jones August 3 "(Everything I Do) I Do It for You" Bryan Adams August 10 August 17 August 24 August 31 September 7 September 14 "The Promise of a New Day" Paula Abdul September 21 September 28 "I Adore Mi Amor" Color Me Badd October 5 October 12 "Emotions" Mariah Carey October 19 October 26 "Romantic" Karyn White November 2 November 9 "Can't Stop This Thing We Started" Bryan Adams November 16 "Cream" Prince and the New Power Generation November 23 November 30 "When a Man Loves a Woman" Michael Bolton December 7 December 14 "It's So Hard to Say Goodbye to Yesterday" Boyz II Men December 21 December 28 "Black or White" Michael Jackson
See also 1991 in music List of Hot 100 number-one singles of 1991 (U.S.)
References https://web.archive.org/web/20080101114901/http://musicseek.info/no1hits/1991.htm https://web.archive.org/web/20080501004335/http://cashboxmagazine.com/archives/90s_files/1991.html