Question: Who was the lead singer on the A-side of the record which reached No. 35 on the Billboard Hot 100, and had Thank You Girl as it's B-side ?
Sentence (from "Thank You Girl"): As the B-side of the single "Do You Want to Know a Secret", it hit No. 35 on the "Billboard" Hot 100 in the spring of 1964.
Relevant evidence: Yes