All-4-One was assembled in Antelope Valley, California by Tim O'Brien, owner of Blitzz Records. He had them record the doo wop classic "So Much in Love
," which rose to #5 in March 1994, earning the group an entire album. "I Swear" was a last-minute addition to the album, and one of two songs produced by David Foster. Released as their next single, "I Swear" went to #1 in America on the chart dated May 21, 1994 - the group was playing gigs at Disneyland at the time.
The group had another hit in 1995 with "I Can Love You Like That," also produced by Foster, which reached #5 US. In 1996, they made #30 with "Someday."