Leijonberg has worked as an actress and singer at Stockholms stadsteater between 1991 and 1992 and again in 2002. She has also worked as a television presenter at
SVT presenting
Söndagsöppet in 1996, replacing
Alice Bah. Leijonberg has also been part of several musicals such as
Grease,
Evita,
Fame and
Sol, vind och vatten at Chinateatern. She has also played in farce shows in Linköping and as a maid in the play Söderkåkar at Boulevardteatern in 2003, she played Liza Minnelli in a Christmas show at
Grand Hotel the same year. Tina Leijonberg has participated in
Melodifestivalen two times, first in
1993, and then in
1995 where she was unplaced both times. In 2004, Leijonberg auditioned for one of the roles in the Swedish version of the hit musical
Mamma Mia, she lost the role to
Gunilla Backman however. In 2010, Leijonberg was chosen by the members of the rock group
Queen to star as the female lead in the Swedish adaptation of the musical
We Will Rock You at
Cirkus in
Stockholm. ==Melodifestivalen==