Sioen headed to the township Soweto in South Africa in 2008 at the invitation of Oxfam's 'One Day For Another World' campaign, in order to establish a collaboration with local musicians. There he met living legends Pops Mohamed (kora, kalimba, m'bira) and Khaya Mahlangu (saxophonist with the likes of Hugh Masekela), and together with Stella Khumalo (backing vocalist with the likes of Miriam Makeba) he organised an audition in the heart of Soweto from which 4 brilliant backing vocalists were selected. During the last Gentse Feesten he brought the musicians to Belgium and the performance that bubbled with melody and energy was an immediate success and 'talk of the town'. De Standaard wrote: "We're always sympathetic to someone who gives a new repertoire a baptism of fire before an audience. Sioen also succeeded with flying colours!"

Fast forward to 2009. Encouraged by the enthusiasm of the audience during the Gentse Feesten, Sioen, together with Laurens Smagghe (Sioen's regular drummer), Mirko Banovic (bass for Arno and Arsenal) and Frederik Segers (guitarist from Members of Marvelas) from Ghent, headed to Johannesburg to record the record 'Calling Up Soweto' with the South African musicians. 'To the township of the townships, where I took my boots. On the train to Naledi, where Jo'burg has its roots. To the sound of revolution, and the vibe on the streets. When I'm gone I sing the blues, in Soweto, that's where I lost my shoes'.

Be sure to bring your dancing feet with you because its forbidden to stand still during this unique trans-continental musical collaborative project that will raise eyebrows.