I like using songs  when teaching English... and my pupils love it. For the younger ones I prefer fingerplays,  nursery rhymes and well known children songs. With older kids and teenagers I  use chants, jazz chants, and radio hits.
Try some of my favourite resources on the web!

Mother goose pages : Here you'll find a complete resource of the most famous English  nursery rhymes and children songs

A rhyme and a reason : Learn about the real origin of the most well kmown nursery rhymes

Judy and David's online songbook :Sing along by getting the words to your
 favorite children's song,

Mojo's musical museum :a place where you  can find the lyrics to your favorite kids' songs, send out a request for a long lost song, or maybe help somebody else find the one they're looking for. OUTSTANDING RESOURCE!

Ernie's EFL : Song activities for all levels

Always on the run lyrics page :Get here all the lyrics you need