Is there anyway to find out what music was played at a certain time?

hey all,im from plymouth,and our local radio station is heart fm,well on the 21st june at around 1700-1800 a really good song came on,i cant remember what it was called or what it goes like,i would if i heard it,but i cant seem to find it in an y charts,its a slow quiet song sang by a guy,is there anyway to find out this song/