The former lead singer of Three Days Grace kept himself busy this weekend in Phoenix as he got up and sang the Star Spangled Banner during the pre-race activities for Sunday's Subway FreshFit 500. 

After departing from the band on January 9 of this year, Gontier has reportedly been working on his solo career, including taking a quick trip to Phoenix to join in on some NASCAR activities.

Gontier was replaced by bassist Brad Walst's brother, Matt Walst, who is known for being the lead singer of My Darkest Days

Three Days Grace will be here with Shinedown and P.O.D. on March 22 with Matt Walst at the vocal helm.

In the mean time, check out Gontier belting the National Anthem..