Born in Oshawa, Ontario, Felicien carries her mother's maiden name, whose origins are in the Caribbean island nation of Saint Lucia.

Felicien moved to Pickering, Ontario, where, as a student, she began competing in track and field events at her school.

Coached by Gary Winckler, in her first year competing at the university level, Felicien earned All-American honors and in the 100m hurdles set the record for the fastest time by a freshman in NCAA history for the event.

With that win, Felicien became Canada's first ever female world gold medallist and the first female in Illinois track & field history to win a gold medal in an individual event at the World Championships.

Unexpectedly, in the event final, Felicien failed to clear the first hurdle and fell into the adjacent lane, knocking down the Russian competitor, Irina Shevchenko, and taking her out of the race and a chance at an Olympic medal, much to the obvious dismay of Shevchenko.

Felicien returned to the track and had some success, winning medals at the world championships alongside her teammate Priscilla Lopes-Schliep.

Felicien did not compete in the 2008 Summer Olympics in Beijing, China due to a foot injury.

She had finished third in the 2012 Canadian Olympic trials for track and field, in the 100m hurdles event, under protest.