Other works

He wrote musicals "Chess", "Kristina från Duvemåla" and "Mamma Mia" together with Björn Ulvaeus.

(1965) Appeared on Swedish TV series, "Drop In", with his group, The Hep Stars.

(Spring 1965) Released 4 singles with his first group, The Hep Stars.

(1983) Agnetha Fältskog, Björn Ulvaeus, Anni-Frid Lyngstad and his musical, "Abracadabra", was performed at the Lyric Theatre in Hammersmith, London, England with Elaine Paige, Jenna Russell, Dexter Fletcher, Michael Praed, Sylvester McCoy and Phil Daniels in the cast. Peter James was the director.

(May 1987) Björn Ulvaeus, Tim Rice and his musical, "Chess", was performed at the Prince Edward Theatre in London, England with Elaine Paige, Murray Head, Tommy Körberg, John Turner, Tom Jobe, Kevin Colson and Siobhan McCarthy in the cast. Trevor Nunn was the director.

(May 1986) Björn Ulvaeus, Tim Rice and his musical, "Chess", was performed at the Prince Edward Theatre in London, England with Elaine Paige, Murray Head, Tommy Körberg, John Turner, Tom Jobe, Kevin Colson and Siobhan McCarthy in the cast. Trevor Nunn was the director.

(June 26 to August 11, 2002) He and Bjorn Ulvaeus were composers and lyricists for the musical, "Mamma Mia!," at the Ahmanson Theatre in Los Angeles, California. Anthony Van Laast was choreographer. Phyllida Lloyd was director. Catherine Johnson wrote the book.

(2016 to 2017 season) ABBA's musical, "Mamma Mia!," was performed at the Marriott Theatre in Chicago, Illinois with Meghan Murphy (Tanya) in the cast. Theresa Ham was costume designer. Ericka Mac was choreographer. Christopher Ash was projection designer.

(2018 to 2019 season) ABBA's musical, "Mamma Mia," was performed at the Drury Lane Productions in Chicago, Illinois. William Osetek was musical director.