What was Barry Manilow's first U.S. No 1 single?

I don't care what anyone says, Manilow is a fine singer.

love every thing he does... think my favorite is "all the time"... not released as single, but powerful...

I remember when Barry Manilow first came out he would touch you soul with every song I really miss that time in my life I also remember my mom wouldn't let me go to his concert when he came to Reading Pa good memories💜💜💜💜💜💜💜

his fans were the called the fanilows.