Born and raised in the greater Berlin area, Biedermann began performing as a member of a troupe of acrobats in a children's circus at the age of six.

She later attended beauty school before dropping out to pursue her music career following her participation and win of the Bild-Schlagerwettbewerb competition in 1998.

Following her departure from GZSZ and a longer hiatus, she had a starring role in the telenovela Anna und die Liebe and released her dance pop-led album Undress to the Beat (2009), which was less successful commercially and led to a decline in her musical career.

The same year, she appeared in the sixth season of Sing meinen Song – Das Tauschkonzert, the German version of the Best Singers series and announced the release of her eighth solo effort DNA (2019).

With album and single sales in excess of ten million copies, Biedermann is ranked among the highest-selling German music artists to emerge in the early 2000s.

Rock My Life spawned three further top ten singles, including "It's Over Now", "Right Now" and a cover version of Bob Seger's "We've Got Tonight", a duet with Boyzone member Ronan Keating that was initially recorded for his second album Destination (2002).

[8] With sales in excess of 200,000, it reached platinum status in Germany and was certified gold by the Austrian International Federation of the Phonographic Industry (IFPI).

[9] In 2004, Biedermann played a dancer opposite Jan Sosniok in the Sat.1 television film Liebe ohne Rückfahrschein.

It was promoted by a short live tour, entitled Bad Girls Club, hitting eight cities throughout Germany.

Trying to reinvent her image once again, she shifted to electronic pop music for the overall sound of the record and consulted a number of new and upcoming collaborators to work with her, including Scandinavian musicians such as Remee, Carl Falk, Thomas Troelsen and Johan Bobäck.

[15] Undress to the Beat spawned two further singles, including "Material Boy (Don't Look Back)" and "Solitary Rose", the latter of which she performed on Anna und die Liebe and was a top 20 hit in Austria and Germany.

[16] In early 2010, Biedermann announced her departure from Anna und die Liebe in March 2010 since she was preparing for her Solitary Rose Tour, set to start in April 2010.

[17] Following her father's remission, Biedermann resigned with Anna und die Liebe for its third and fourth season in fall 2010.

[18] In 2011, German fashion retailer Jeans Fritz engaged Biedermann as a designer and model for their casual brand.

[20] In August 2011, Biedermann was awarded the Order of Merit of the Federal Republic of Germany for her social, charitable or philanthropic work as a German Red Cross ambassador.

[21] Feeling increasingly exhausted due to her time-consuming career in both music and film, Biedermann decided to withdraw from her public life as a solo artist and founded the band Ewig along with boyfriend Jörg Weißelberg and friend Christian Bömkes.

[22] On 16 April 2019, Biedermann released "Wie ein offenes Buch", her first solo single in ten years, through Columbia Records.