How many years does it take to bring together the stars of opera, rock ‘n’ roll, Broadway, country and classical music?

15 years exactly.

This May 12th, the 170-year-old Mormon Tabernacle Choir will release its album, “Mormon Tabernacle Choir and Friends.” The group dubbed “America’s Choir” features stars of classical music such as; Renée Fleming, Bryn Terfel, and Yo-Yo Ma. Broadway greats are equal in number with Angela Lansbury, Brian Stokes Mitchell and Santino Fontana.

Featured on the album are the most memorable moments, spanning all genres, of the choir’s past 15 years, including 4 songs composed for the choir itself. With 360 singers, the choir holds a Grammy Award, 3 Emmy Awards and a National Medal of the Arts, on its list of achievements.

The album will include Fleming performing  “How Can I Keep from Singing?” while Terfel will be featured in “Homeward Bound.”

The album will be available for pre-order on Amazon and iTunes before its May 12 release.