“This I Swear,” another dreamy
Beaumont-Rock love ballad, was
issued in May 1958
  Appearing at the New York
recording session was a young
writer/artist/producer and member
of the Teddy Bears named Phil
Spector; he later cited “Since I Don’
t Have You” as an influence on his
production style in the 60s.)  
  Like “Since I Don’t Have You,”
“This I Swear” did better on the
black charts (#20 R&B to #26 Pop)
.