Rebel Wilson is back in musical-comedy mode with Girl Group, a Toronto Film Festival Gala Presentations title that positions the performer, filmmaker and co-writer at the center of a pop-fueled redemption story built around big hooks, girl-group nostalgia and a fresh teen ensemble.

Wilson directs and co-writes the film, while also starring as Tassie Young, a pop star whose glory days began when she and her four best friends were discovered at a talent show in 1996. A decade later, Tassie’s hard-partying behavior led to her exit from the group. In the present-day story, she learns that her former bandmates are planning a reunion tour — and they have no interest in bringing her back.

That setup sends Girl Group into its second-act engine: after a DUI arrest, Tassie is assigned to teach music to a group of teenage girls at the East Hollywood Community Center. What begins as a forced placement turns into a chance for Tassie to spot their potential and help prepare them for an audition with a major label.

The result, as presented at Toronto, plays as a lively spiritual cousin to the kind of musical comedy that made Wilson a fan favorite nearly 15 years after she first broke through audiences’ funny bones as Fat Amy. Girl Group does not hide its love of pop performance: its young cast is given room to sing, dance and spar comedically with a lineup of more seasoned performers.

Wilson’s Tassie is surrounded by a broad comic ensemble. Jennifer Coolidge appears as Tassie’s manager, Randall Park plays the director of the community center, and Derry Girls alum Jamie-Lee O’Donnell turns up as a rival coach leading her own girl group. The film also brings in a stacked group of cameos, including Spice Girls’ Mel C, Pussycat Dolls’ Nicole Scherzinger, Sally Hawkins and Chris Colfer, among others.

Music is central to the film’s appeal. Girl Group features choreographed covers of songs associated with Spice Girls, Destiny’s Child, Billie Eilish, Chappell Roan and others, giving the ensemble of newcomers a showcase alongside the film’s better-known names. The teen performers are presented not merely as a backdrop for Tassie’s comeback arc, but as a group expected to hold the screen through both performance numbers and comedy beats.

The listed cast includes Wilson, Randall Park, Sheridan Smith, Melanie Chisholm, Nicole Scherzinger, Jamie-Lee O’Donnell, Shaznay Lewis, Ashley Roberts, Judi Love, Guz Khan, Chabely Ponce, Daniela Couso, Lilah Pate, Mia Kaplan, Bailey Stender, Loren Gray, Miracle Washington, Ana Yi Puig, Keith Duffy, Chris Colfer, Bechill, Jolene, Sally Hawkins and Jennifer Coolidge.

At 1 hour and 43 minutes, the film aims for an accessible crowd-pleaser shape: a fallen pop figure, a reluctant teaching assignment, an undiscovered group of young singers and an industry audition with stakes attached. The Toronto berth gives Wilson’s feature a high-profile festival platform, with UTA/Live Nation Studios listed as sales agents.

For audiences who have missed Wilson in a character-driven musical comedy, Girl Group delivers a familiar pleasure with a new configuration: a former star trying to claw her way back into relevance while discovering that the next generation may be the real act to watch. Its mix of heart, humor and pop covers makes it an easy sing-along proposition — especially for viewers still susceptible to a well-timed group number.