I need a simple, fun, bright, animation video created to go with a children's song

Information for the business: It's for a kids focused YouTube channel
Industry: Entertainment
Design details: Here is an example of the type of song I am talking about:

https://youtu.be/P2nCsqujCsQ

And here is an example of someone else who has created an accompanying animation:

https://youtu.be/MtN1YnoL46Q

Also:

https://youtu.be/3Ux7uNxTfTA

The aboce are JUST examples and it doesn't need to look just the same - a blocky, GoAnimate style would be absolutely fine. 2D is fine. Nobody needs to reinvent the wheel here though a sense of humour and fun when it comes to interpeeting the 'silly' childrens' songs I am talking about is key.

Other examples of the type of thing I'm after can be found at...

https://www.youtube.com/user/SuperSimpleSongs
https://www.youtube.com/user/KIBOOMU

....and, frankly, all over YouTube (just search for 'childrens songs').

It needs to be v simple, birght and accesbile as it is aimed at young children (say 2-7). Fun is the mos timprotant elemnt here!

I will need to own all rights to the finished animation outright, forever, all media, copyright, publishing, you name it!

I don't think it will take too much time or be too difficult for anyone who vaguely knows what they are doing with cartoons/animation.

If the first one works out then there will be recurring similar work for the animator/cartoonist/designer concerned.
Target audience: 2-7
Messages to communicate through the design: It needs to be fun, it needs to be bright and accessible...

...a key thing to keep in mind though is that the songs I'm talking about are actually fairly amusing in their own right so I need someone who can bring that fact to life and breathe some life into their animations.

I'm not talking about nursery rhymes and the like - these are songs, like the 'Duck Song', with a bit of an edge to them.

See also https://youtu.be/DX_rgHHWwv8 for another example.
Ideas for the visual style: See above
Things to avoid: See above
Urls to draw inspiration from: See above
Extra notes: That's it for now really - anyone who applies will need to be able to show me some limited animation/cartoon work they've already done, preferably aimed at young children.