Clarke Isaac Hanson, (born November 17, 1980), is the oldest member of the pop trio Hanson. He shares the spotlight with his two younger brothers, Taylor Hanson (24) and Zac Hanson (21). Isaac plays the Guitar, Piano, Mandolin and Bass. While playing live he prefers: Gibson Les Paul electric guitar (with Ernie Ball RPS 11’s), Taylor Model 810 acoustic guitar, Matchless DC 30 and Marshall “Blues Breaker”.
He often serves as the voice of Hanson, being the voice most frequently heard on “Hanson Hotline”, an authorised recorded phone message left for fans.

Isaac married Nicole Summer Dusfresne on September 30, 2006. They have a son called Clarke Everett, born April 3, 2007.