For many years, people have been building robots for many reasons.
Some of these robots were designed for children's toys and others were designed to make life easier for humans.
A few days ago, Cool Like Pie, posted an article on how robots are working on plantations in Japan to increase the supply of food.
Look to see what Drexel University Engineering professor Youngmoo Kim and graduate students Alyssa Batula and David Grunberg have been working on.
This robot, named Hubo, can listen to the music and coordinate moves based on the waveforms it hears.
They are also training it to play the piano.
This video just shows a little bit of what Hubo can do.