After studying intensively acting and stage performance, Sebastien went on to star in the International hit musical Notre-Dame de Paris, and following on from this success, Stella became a house troupe performer from 2002-2004 in the Cirque du Soleil production of ‘O’ at the Bellagio resort in Las Vegas. Learning from peers and legends, he improve quickly his skills as a performer and a creation force. From 2008, Stella choreographed aerial stunts for big American TV networks like NBC Celebrity Circus and the MTV Music Awards along with huge international artists such as Cher, Pink, Katy Perry and Britney Spears. Then in 2011, Stella worked with Oscars winner actors Reese Witherspoon and Christopher Waltz to create incredible circus scenes in the American romantic drama Water for Elephants. Since then he has worked as a choreographer in several Hollywood films, including the 2013 film Oz the Great and Powerful directed by Sam Raimi. In 2014, Stella began his second season as a judge on the French and british TV talent shows, TF1 The Best, le meilleur artiste and BBC "Tumble". He is also continues to work on many production projects, devising stunts and directing physical effects for well known international companies.
In 2011, Stella was ranked number three out of the 50 most prominent French people in the United States by America’s largest French-language magazine France-Amerique.