<P> `` Welcome Back '' is a popular record that was the theme song of the 1970s American television sitcom Welcome Back , Kotter . Written and recorded by former Lovin ' Spoonful frontman John Sebastian , it reached No. 1 on the Billboard Hot 100 chart for one week in May 1976 after only five weeks on the chart , and also topped the adult contemporary chart ( the show itself had become an instant ratings success upon its premiere the previous fall ) . It also reached No. 93 on the country chart . </P>
<P> `` Welcome Back '' is a popular record that was the theme song of the 1970s American television sitcom Welcome Back , Kotter . Written and recorded by former Lovin ' Spoonful frontman John Sebastian , it reached No. 1 on the Billboard Hot 100 chart for one week in May 1976 after only five weeks on the chart , and also topped the adult contemporary chart ( the show itself had become an instant ratings success upon its premiere the previous fall ) . It also reached No. 93 on the country chart . </P>
who sang the theme song from welcome back kotter
who sang the theme song from welcome back kotter
former Lovin ' Spoonful frontman John Sebastian
former Lovin ' Spoonful frontman John Sebastian