Steeleye's "One Misty Moisty Morning" is from Parcel of Rogues.

I used to play "Here Comes the Sun" by George Harrison/Beatles for one of the children when it was time to get up for school.

They've also enjoyed "Rise and Shine": Rise and shine, and give God the glory, glory (repeat x2), children of the Lord. Then it goes on about God telling Noah to build an arky, arky, there's gonna be a floody, floody, and on and on. It's such a sweet, joyous thing when the kids sing it.

Then, of course, there's "Abiyoyo".

Sharon