Embrace it
or, in the words of a song you will soon know if you don't already...
♫ let it go, let it go ♫
Don't try to unhear or get the song out of your head. Instead, accept the fact that it is stuck there and be OK with that. It's a reminder of your daughter that you will carry with you forever, and is an experience shared by most parents. It's not embarassing—it's cool!
Not only is knowing the words to children's songs a badge of honor for parents, it's actually a very useful tool:
- A known song is an invaluable tool for defusing an upset toddler, and it works best if you both know the words.
- Songs are useful tools as part of a nap or bed time routine, so long as its calm. Familiar songs work better than songs a child has never heard.
- It is also a great bonding experience with your child. (My daughter, almost 3 years old, and I frequently break into song while playing or in the car)
- Changing the words slightly can result in all sorts of creative ideas and experiences for your child's developing mind (For example, I told my daughter that the Grinch was coming to town, and she made up a new variation of "Santa Claus is Coming to Town")
Don't worry: it gets much better when you start singing catchy songs from children's movies.
Edit specifically for children's toys: Take out the batteries; problem solved.
Without any scientific evidence to back this up, I'd say children are better off sometimes when you remove the batteries. Some modern toys seem to play with themselves a little too much, and kids just stare at them. I think the point of these kinds of toys is to encourage exploration and see the cause-effect of actions. If the toy goes overboard with this, it's not only annoying but also probably not useful to your child either.