At 18, Svensson boarded Portuguese cruise ship MS Funchal as a singer-pianist and a headliner, and from there on she performed throughout Sweden and Europe.

[22] Svenska Hollywoodfruar features Svensson both as a singer, pianist, performer, songwriter and recording artist,[23][24] as well as a vocal coach.

[25] In 2019, Svensson Riggs was one of the 50 international expert judges on the new global talent competition series The World's Best from reality TV heavyweights Mark Burnett and Mike Darnell, on CBS.

[6][26] Margareta Svensson Riggs has become an expert within vocal technique [27] [28] and is known for defining singing in short as “the energizing, managing, shaping and directing of air.” She is the trusted voice teacher to legendary singers and superstars such as Stevie Wonder, Michael Bolton, Brian Wilson and M.Shadows among others.

Once teaching together, they embarked on a groundbreaking journey of deepening and developing the Svensson Riggs vocal technique and their understanding and methods for correct, effective and healthy singing to benefit their clients, where many are a Who’s Who of superstar artists.

Svensson tested positive for BRCA1 and while waiting for preventive surgery, an MRI revealed early stage breast cancer.