Jules was a surprise guest on a series of Parisian concerts of French singer Mylène Farmer, called Timeless 2013 (September 2013). In all the performances that take place in the Palais omnisport de Bercy, Gary Jules sings his cover of Mad World joined by Mylène Farmer. They follow by the duet song "Les Mots" that Mylène Farmer originally released in 2001 with Seal. So far Gary Jules is also part of the tour, as he was also performing during the concerts in Lyon.