In sumo wrestling, a heya (部屋) (Japanese for "room") or sumo beya, usually translated into English as stable, is an organization of sumo wrestlers where they train and live. All wrestlers in professional sumo must belong to one. There are currently 49 heya (as of September 2011), all but four of which belong to one of five ichimon (groupings of heya). They vary in size, with the largest heya having over thirty wrestlers and smallest just three. Most heya are based in and around the Ryogoku district of Tokyo, sumo's traditional heartland, although the high price of land has led to some newer heya being built in other parts of Tokyo or its suburbs.

Most heya have a network of scouts, who may be former wrestlers themselves, friends of the head coach, or supporters of the heya, who keep a look out for any powerful or athletic young men and follow the results of local sumo (and judo) competitions. Most new recruits join at the age of 15 or 16, straight from junior high school.

A wrestler is expected to stay with the heya he joins until the end of his career. There is no transfer system in sumo. The only exception is if the coach who originally scouted him leaves to found a new heya, in which case he might be permitted to follow him.

Moustafa Amar (Arabic: مصطفى قمر‎) (born Moustafa Ahmed Mohamed Hassan Amar Arabic: مصطفى أحمد محمد قمر‎ on September 22, 1966) is an Egyptian musician and actor.

Moustafa Amar attended Al-Shaheed Abbas School where his talent and love for music and singing earned him the role of lead singer in the school concert. His father got him a guitar when he was ten and he began taking summer classes. Amar attended the University of Alexandria, then he moved to Cairo to find a production company.

Amar is married to Ghada Essa and they have two sons, Eyad and Tayam. Eyad was born in 1993. Tayam was born in 1996. They're currently attending AIS: the American International School in Egypt. Both were in his movies, Qalb Garee and Bahibak Wana Kaman. Eyad likes to play the guitar and Tayam likes to play the drums.

Amar's first song was "Wala Yabou Khad Gameel", released on a collective album, and in 1990, he released his first solo album, Wassaf. In 1992-1993, he released his second album, Layaleki, which sold well. He has collaborated with actress Nilly ("Papa Noel"), arranger/singer Hamid El Shari and Gipsy Kings. In 2004, he released Enssa, his 14th album.