Vandaag is de Dag (Wonderland) is the song that Margo entered in Junior Eurosong. In 2009 the performers had to produce 2 versions of their song, this being the Wonderland version, the other being the Fiesta Latina version. It was one of the best songs from the 2009 show, being selected for the compilation CD Het Beste Van Junior Eurosong [The Best of Junior Eurosong] despite the fact that Margo was knocked out of the competition in the first round, a decision that I will never understand. The 2 versions of Vandaag is de Dag are the only professional quality recordings of Margo that are available, though a search of YouTube does find a few other performances by Margo, most notably her excellent rendition of the Ann Christy song Lisa is Lisa, that was recorded from a live performance at Die Klaveren Drie, from a show with Laura Omloop (Junior Eurosong 2009 winner and Belgium’s representative at the 2009 JESC) and Pjotr Wolfs (another 2009 Junior Eurosong contestant).
[Originally the version from Junior Eurosong show was included but the Blegian broadcaster has had all copies of the video removed from YouTube so it has been replaced by a video of Margo singing Vandaag is de Dag (Wonderland) live at Die Klaveren Drie]
Unfortunately I have been unable to find any active links to follow Margo.