In 2008, Dion, along with Daniel Hamlitsch and Matthew Gaiser, formed the indie rock group Late Young.

[2] His song, "Pour exister" on the album, Star Académie 2012 reached double platinum, becoming a hit on Quebec radios.

[3] In the summer of 2013, Dion played Link Larkin in the musical, Hairspray, which was directed by Denise Filiatrault.

[5] From February 18-20, 2015, Dion performed an opening act of Véronic DiCaire at the Olympia music hall in Paris, France.

[6] On June 11, 2015 he was selected for the role of d'Artagnan in a new musical interpretation of The Three Musketeers at the Palais des Sports in Paris on September 29, 2016, and continue to tour around France until January 2017.