Must Watch! French Lessons with Alex Jumelin & Matthias Dandois Posted on June 7, 2013 by Effraim — Leave Comments ↓ French Lessons | Voodoo Prejam 2013 from robpossible on Vimeo. Really nice edit by Robert Porter aka Rob Possible who will be dropping a new Voodoo jam edit everyday from now till Monday. Here is the first treat with best of friends, Alex and Matthias at the pre-jam! Don’t miss this one!