This sound is from My Best Friend's Wedding (1997)

My Best Friend's Wedding is a romantic comedy film released in 1997. The story revolves around Julianne, played by Julia Roberts, who realizes she's in love with her best friend Michael, portrayed by Dermot Mulroney, just as he announces his engagement to another woman, Kimmy, played by Cameron Diaz. Determined to win Michael back, Julianne schemes and manipulates her way into the wedding festivities. The film is filled with heartfelt moments, humor, and a memorable musical number by the cast. You can play and download the delightful sounds of this movie here.