Kenneth "Spider" Sinnaeve (born May 2, 1955) is a Canadian musician. He was a founding member of the popular Canadian band Streetheart, and since 2001 has been a member of Loverboy, replacing late original bassist Scott Smith. Sinnaeve has also contributed to many albums and played live performances with George McCrae, Helix, Tom Cochrane & Red Rider, Kim Mitchell, The Partland Brothers, Lee Aaron, and The Guess Who. He is known for his extended solos, which often last 15–20 minutes.