Alongside Patty Brard and José Hoebee, she scored a string of international hit songs such as "You're the Greatest Lover", "Trojan Horse", "Casanova" and "Ooh, Yes I Do".

[1] On 4 January 2019 the group announced another line-up change in De Telegraaf: media personality Chimène van Oosterhout replaced Ria Thielsch.

[4] Moreover, Scheide participated in several advertising campaigns including lemonade SiSi, "bintje" (a potato variety), Quick Tanning and Yamaha motorcycles.

[5] In 1976, she was cast as a member of a girl group (Luv') created by two record producers, Hans van Hemert and Piet Souer.

From 1977 to 1981, Luv' (Marga Scheide, Patty Brard (replaced in August 1980 by Ria Thielsch) and José Hoebee) scored a string of hit records in a large part of Continental Europe (Benelux, Germany, Switzerland, Austria, Denmark, Finland, Norway, France, Spain) as well as Israel, South Africa, Zimbabwe, Australia, New Zealand, Canada, Argentina and Mexico.

This new line-up, dubbed "Marga's Luv" by fans, only scored a minor hit ("Welcome to my Party") on the Dutch Top 40 in the autumn of 1989 and never became as successful as the original trio.

[9][10] On 7 February 2020 Luv' (which had not performed since September 2019 due to José Hoebee's illness) informed the media and the public about the interruption of their activities.

Alongside José Hoebee, Scheide sang backing vocals on Dutch girl group Babe's 1981 single "Tick-A-Thums-My-Heart".

In 1982, Scheide was the lead member of another short-lived girl group Marga & Deuce with two twin sisters Clari and Anja Horsmeier who recorded a single ("One, Two, Three... Bananas"), however it failed to chart.

From October 2020 to April 2022, she appeared as a guest artist for a limited number of performances of Flemish comedian Piv Huvluv as part of his Vinylvreter tour.