Canadian comedy fans had better do some crunches to prepare for some serious laughs.

“SCTV” alums Catherine O’Hara, Andrea Martin, Eugene Levy, Joe Flaherty, Martin Short and Harold Ramis, are performing for a second time tonight at the Second City Theatre in Toronto.

According to the CBC, the reunion is part of the Benefit of Laughter, a fundraiser for Second City’s staff members who need help financially.

Combining some classic sketches and improv sets, the reunion could become an annual event if it is successful.