Mosaic is a multi-site Christian megachurch based in Los Angeles, California, and is currently led by Erwin McManus.

[1] On January 3, 1943, thirty-five charter members of Bethel Baptist Church began meeting in a rented storefront at Brady Avenue, Los Angeles, California.

[4] In 1969, at the age of 24, Thomas A. Wolf ("Brother Tom") became the senior pastor of the then-named First Southern Baptist Church of East Los Angeles.

At that time, the small number of people still attending were predominantly Caucasian/Anglo and elderly in an area that was becoming more diverse with Hispanic, Armenian, and Asian families moving into the locality.

At this time McManus made several changes at Brady church, starting with promoting the use of multi-media, art and dance in worship.

The 1959 structure is located at the intersection of Hollywood Boulevard and La Brea Avenue and has been designated a Los Angeles Historic-Cultural Monument.Mosaic South Pasadena launched in 2017 in the historic Rialto Theatre, with a lease agreement running until 2039.

[27] On July 13, 2019, Refinery29 published an article that described megachurches in general as being image-obsession and claiming to have "open doors" while also being unwelcoming to members of the LGBTQ+ community.

One former Mosaic attendee said that openly gay people were denied leadership positions due to their homosexuality.