"How Can I Be Sure" is a popular song written by Felix Cavaliere and Eddie Brigati, and originally recorded by the Young Rascals for their 1967 album Groovin' with a single release in August 1967 affording the group their fourth Top 10 hit.

Edward Brigati Jr. is an American singer-songwriter. He was the co-lead vocalist, along with Felix Cavaliere, and percussionist in the rock group The Young Rascals from 1964 to 1970.