Washington, Oct 15 : Madonna has said that her most "retarded" songs go on to become hits.

The Queen of Pop has said that she never comes to know which of her songs will be most popular while recording an album.

And the Material Girl, 51, has said that she is always left surprised at the songs which go on to become fans’ favourites.

"I''ve never been a good judge of what things are going to be huge or not. The songs that I think are the most retarded songs I''ve written, like ''Cherish'' and ''Sorry'' - a pretty big hit off my album ''Confessions on a Dance Floor'' - end up being the biggest hits,” Contactmusic quoted her as saying to Rolling Stone magazine.

"''Into the Groove'' is another song I feel retarded singing, but everybody seems to like it,” she added. (ANI)