The sorting hat is a hat from Harry Potter. It decides what group they are in. It is a dark brown hat with a mouth.
The hat is called the Sorting Hat. When placed on an incoming students head, the Sorting Hat looks at their personality and decides which Hogwarts house is best.
The sorting hat
Leslie Phillips
the Sorting Hat Song
Voldemort
Harry spoke to the sorting hat in the first and second movie.
The sorting hat's song changes every year. So maybe.
One can purchase a Harry Potter Sorting Hat from various websites like Amazon or eBay. Both websites offer a great amount of products, including a Harry Potter Sorting Hat.
Voldemort forces a burning Sorting Hat onto Neville's hat, Neville as a worthy Gryffindor (as Harry was in the second book) pulls the sword out of the Sorting Hat.
Pottermore.com
It's chapter seven, book 1, the name of the chapter is The Sorting Hat, and it's on page 113.
The Sorting Hat placed the first years into houses in the Sorcerer's Stone. It revealed a bit about Harry's connection with Voldemort, as it was going to place him in Slytherin. The Sorting Hat played a larger role in The Chamber of Secrets and the Deathly Hallows.