What was the title of the 1992 comedy in which a Reno lounge singer accidentally witnesses a murder, and hides out in a convent—where she becomes the choir leader, teaching the sisters to boogie down.

This popular 1992 film stars Whoopi Goldberg as Deloris Van Cartier, a sassy and talented lounge singer in Reno, Nevada. Her life is turned upside down when she witnesses her mobster boyfriend commit a murder. Placed in the witness protection program, she is sent to the one place the police believe no one will ever look for her: a quiet convent in San Francisco. Under the new identity of Sister Mary Clarence, Deloris struggles to adapt to the strict, cloistered life.

The plot perfectly matches the description when Deloris is assigned to lead the convent's choir, a woefully out-of-tune group of nuns. Using her show-biz experience, she transforms the choir by teaching the sisters to embrace soul, gospel, and rock-and-roll. She infuses traditional hymns with vibrant, modern energy, creating show-stopping numbers like "My Guy" (reworked as "My God") and a famous rendition of "I Will Follow Him." This newfound musical success brings much-needed attention and funds to the church, but it also threatens to blow her cover.

The film was a massive commercial success, becoming one of the highest-grossing comedies of the early 1990s. Its popularity led to a sequel, "Sister Act 2: Back in the Habit," and a successful Broadway musical adaptation. The role was originally intended for Bette Midler, but Goldberg made it her own, earning a Golden Globe nomination for her iconic and hilarious performance.