ASCAP has listed the top five love songs of the 20th Century by decade, and 'Someone to Watch Over Me' was #4 in the 1920's.
'Someone To Watch Over Me' has been sung and/or recorded by literally hundreds of singers, both male and female, worldwide. Almost everyone who's anyone in popular music has done his or her version.
I'm a little disgusted with the AI producers using classic popular songs for a "Rod Stewart genre." I really enjoy Stewart, but the standards he's been recording in recent years are not his songs any more than they are the songs of hundreds of other recording artists who have done them before. I would much rather AI use Stewart's original material -- but I suspect he won't let them.