“Coz I Luv You” is a song by the British rock band Slade, released in October 1971. Written by lead vocalist Noddy Holder and bassist Jim Lea, and produced by Chas Chandler, it became their first number one single in the UK. The song features electric violin played by Lea and has a catchy, upbeat melody that helped establish Slade’s success during the glam rock era. It remained in the UK top 50 for fifteen weeks and was also a hit across Europe.