She sings in two other languages, English and Mandarin Chinese, in addition to in Swedish.

In 1986 she performed the song "I Know Him So Well" from Chess in De okändas revy leading to participation in a televised talent show Folkparkernas talangjakt.

Källgren performed a song, "Världen är vacker", entered to Melodifestivalen 1989.

In Melodifestivalen 1990 she entered again and performed "Handen på hjärtat" solo backed up by three dancers wearing partial fursuits.

She was awarded Guldmasken (The Golden Mask) for her 1998 performance in the musical Miss Saigon at Göta Lejon in Stockholm.