The 17-year-old high school senior turned professional last year and is now coached by Alberto Salazar.
Langat, Aregawi and Gebrhiwet will all toe the line in NYC on May 25.
Both the men's and women's fields are well represented by the East African nation.
He may be the next Kenenisa Bekele.
The 18-year-old has dominated the indoor track this season.
Hagos Gebrhiwet sets meet record in men's 3K; Mary Cain shatters HS 2-mile record.
The 19-year-old had to work hard for his win.
Newly minted Masters runner Kevin Castille takes men's 40+ title.