The original group members consisted of Brown University alumni Elliott Kerman, David Stix, Sean Altman, and Steve Keyes. Stix left the group early on and was replaced with Charlie Evett. After having performed on New York City street corners for passers-by the group met a producer who found them a spot on the television show Spike & Co.: Do It A Cappella, hosted by Spike Lee. It was this show that put them in the national spotlight. 
The text "All sounds provided by the voices and appendages of Rockapella," the central idea of the group, appears on the group's label debut, Don't Tell Me You Do.
None of the original members of Rockapella currently remain in the group. Founding members Sean Altman and Steve Keyes, Charlie Evett, and non-Rockapella-related baritone Kevin Weist now comprise an a cappella group called The GrooveBarbers. They can be seen on a current nationwide television ad for Astelin nasal spray as 'The Astelins'. Founding member Elliott Kerman is working independently on jazz music compilations.
Frequently, songs downloaded on file-sharing programs are mis-tagged as Rockapella, when they are instead by other a cappella artists, including collegiate groups, Moxy Früvous, or The Nylons.
| Year | High tenor | Tenor | Baritone / Second tenor | Bass | Vocal percussion |
|---|---|---|---|---|---|
| 1986 | Steve Keyes | Sean Altman | Elliott Kerman | David Stix | |
| 1987 | |||||
| Charlie Evett | |||||
| 1988 | |||||
| 1989 | Barry Carl | ||||
| 1990 | |||||
| 1991 | Scott Leonard | ||||
| 1992 | |||||
| 1993 | Jeff Thacher | ||||
| 1994 | |||||
| 1995 | |||||
| 1996 | |||||
| 1997 | Kevin Wright | ||||
| 1998 | |||||
| 1999 | |||||
| 2000 | |||||
| 2001 | |||||
| 2002 | |||||
| 2003 | George Baldi III | ||||
| 2004 | John K. Brown | ||||
| 2005 | |||||
| 2006 | |||||
| 2007 | |||||
| 2008 |
| Release Date | Album | Line-up | Label |
|---|---|---|---|
| June 2004 | Live In Japan | Leonard, Wright, Kerman, Baldi, Thacher | Shakariki Records |
| November 2002 | Comfort & Joy | Leonard, Wright, Kerman, Baldi, Thacher | Amerigo Records Re-released on Shakariki Records in 2004 |
| March 2001 | In Concert | Leonard, Wright, Kerman, Carl, Thacher | J-Bird Records Re-released on Shakariki Records in 2004 |
| October 2000 | Christmas | Leonard, Wright, Kerman, Carl, Thacher | J-Bird Records Re-released on Shakariki Records in 2004 |
| March 2000 | 2 | Leonard, Wright, Kerman, Carl, Thacher | J-Bird Records Re-released on Shakariki Records in 2004 |
| February 1999 | Don't Tell Me You Do | Leonard, Wright, Kerman, Carl, Thacher | J-Bird Records Re-released on Shakariki Records in 2004 |
| Mid-1997 | Rockapella aka 'Devilbaby' | Leonard, Wright, Kerman, Carl, Thacher | Independent |
| Mid-1996 | Lucky Seven | Leonard, Altman, Kerman, Carl, Thacher | Independent |
| Mid-1995 | Primer | Leonard, Altman, Kerman, Carl, Thacher | Independent |
| Year | Album | Line-up | Label |
|---|---|---|---|
| 2002 | More Than Ever | Leonard, Wright, Kerman, Carl, Thacher | Rentrak Records |
| 2002 | In Concert | Leonard, Wright, Kerman, Carl, Thacher | Rentrak Records |
| 2001 | Christmas | Leonard, Wright, Kerman, Carl, Thacher | Rentrak Records |
| November 1996 | Lucky Seven: Memories And Dreams | Leonard, Altman, Kerman, Carl, Thacher | For Life Records |
| November 1995 | Best Fest | Leonard, Altman, Kerman, Carl, Thacher | For Life Records |
| November 1994 | Out Cold | Leonard, Altman, Kerman, Carl, Thacher | ForLife Records |
| April 1994 | Vocobeat | Leonard, Altman, Kerman, Carl, Thacher | ForLife Records |
| December 1992 | Bash! | Leonard, Altman, Kerman, Carl | ForLife Records |
| May 1992 | From N.Y. | Leonard, Altman, Kerman, Carl | ForLife Records |
| May 1992 | To N.Y. | Leonard, Altman, Kerman, Carl | ForLife Records |
| Year | Album | Line-up | Song | |
|---|---|---|---|---|
| 2007 | Hokie Nation: An A Cappella Tribute | Leonard, Wright, Kerman, Carl, Thacher | "I'll Hear Your Voice" | |
| 2002 | 20 Christmas Stars, Vol. IV | Leonard, Wright, Kerman, Baldi, Thacher | "Merry Christmas Darling" | |
| 1996 | Voices Only: A Cappella Originals | Leonard, Altman, Kerman, Carl, Thacher | "Bed Of Nails" | |
| 1993 | Carmen Sandiego: Out of This World | Leonard, Altman, Kerman, Carl | "Big Wet Rag" | |
| 1993 | Put On Your Green Shoes | Leonard, Altman, Kerman, Carl | "Light Of The Sun" w/Richie Havens | |
| 1993 | Muppet Beach Party | Leonard, Altman, Kerman, Carl | "PapaOomMowMow" | |
| 1992 | Where in the World is Carmen Sandiego? | Leonard, Altman, Kerman, Carl | "Capital" "Everything To Me" "My Home" "Let's Get Away From It All" "Indiana" "Where In The World Is Carmen Sandiego?" | |
| 1992 | Modern A Cappella | Leonard, Altman, Kerman, Carl | "Zombie Jamboree" | |
| 1991 | Zappa's Universe | Leonard, Altman, Kerman, Carl | "Elvis Has Left The Building" "Heavenly Bank Account" | |
| 1990 | Spike Lee & Company: Do It A Cappella | Keyes, Altman, Kerman, Carl | "Zombie Jamboree" "Under The Boardwalk" (with True Image) | |
| Release Date | Album | Line-up | Label | |
|---|---|---|---|---|
| Summer 2005 | Live At Duo Music Exchange | Leonard, Wright, Kerman, Baldi, Thacher | Duo Records | |
| Summer 2004 | Best A Cappella | Leonard, Altman, Kerman, Carl, Thacher | ForLife Records | |
| Release Date | Album | Artist | |
|---|---|---|---|
| May 2007 | 1 Man 1 Mike | Scott Leonard | |
| My Favorites: The Bee Gees | Scott Leonard | ||
| Nice Kitty | Scott Leonard (Fi Ling Fader) | ||
| Bluespeel | Scott Leonard (Flying Faders) | ||
| The OGs Featuring Scott Leonard | Scott Leonard | ||
| Unorthodox | Sean Altman (What I Like About Jew) | ||
| Losing Streak | Sean Altman | ||
| alt.mania | Sean Altman | ||
| SeanDEMOnium | Sean Altman | ||
| The SoLow Project | Barry Carl | ||
| Glory | The Groovebarbers | ||