Demi Lovato

The newly married Katy Perry, Justin Bieber and sing at the 38th Kehä delivery of American Music Awards, to be held on November 21 in Los Angeles.

This will be the first performance for each of these artists in this event and will join previously announced cast with stars like Christina Aguilera, Bon Jovi, Pink and Usher.

Orly Adelson, producer of the delivery to be held at the Nokia Theatre in Los Angeles, said that in the coming days will reveal more names of artists to act in this award.

'Justin, Katy and Kehä have been at the top of the charts and sales during the year and we are happy to see how each of them will make their own history in this issue ", he said.

Kehä, who has sold over 15 million albums worldwide, competing in the line of Artist of the Year with Lady Gaga, Eminem.

Less than 10 months of releasing their first album 'Animal', his single "Tik Tok" has been certified platinum and the November 22 release their second CD 'Cannibal'.

At 16 years, Bieber is considered a global sensation after his two albums 'My world' and 'My world 2.0' have sold over six million copies.

Your song 'Baby' the young artist of great crested is the single most watched music videos on YouTube, with more than one million hits.

For its part, the latest album of Katy Perry 'Teenage Dream' debuted at the top of the charts and already has two singles in the first place.

These are "California Gurls" and "Teenage Dream" and recently launched the third "Firework" beginning to move in the lists.

Last week, Perry was married to comedian Russell Brand.

Bieber is nominated for four American Music, while Perry and Kehä three each. Eminem and Lady Antebellum top the list with five each.