Marshall Leib, along with Phil Spector, was part of the vocal group that created what song that reached #1 in 1958?
Marshall Leib:  Leib and his high school friend, producer Phil Spector, formed the trio. Marshall Leib:  Leib performed background harmony vocals and they made a black-and-white film of the song "To Know Him Is to Love Him", which became the number one song in the U.S. The Teddy Bears' song has since been covered by many artists such as Dolly Parton and Amy Winehouse, to name a few. To Know Him Is to Love Him:  It was first recorded by the only vocal group of which he was a member, the Teddy Bears. To Know Him Is to Love Him:  Their recording spent three weeks at No. 1 on the "Billboard" Hot 100 singles chart in 1958, while reaching No. 2 on UK's "New Musical Express" chart.
To Know Him Is to Love Him