Hastings was originally intended to be a temporary replacement, but then became a full member after two months, with his first album with the band being Crisis in 2006.

[3][4] Hastings was previously the drummer for the Burlington-based bands Jersey,[3][5] Chapter One, and Hoodrat, none of which are currently active.

[8][9] Hastings is now drummer for the trio Say Yes, which consists of guitarist/vocalist Adam Michael and bassist/vocalist Michael Zane and will release their debut self-titled EP August 19, 2014 with Dine Alone Records.

In January 2016, Hastings began filling in for Aaron Solowoniuk in the band Billy Talent, after Solowoniuk had a multiple sclerosis relapse.

[10] He recorded the drums for their album Afraid of Heights, released in July 2016.