The Serbian is aiming for a speedy progression through to the Hammers' senior side.
West Ham United FC (@whufc_official) September 13, 2015
The 19-year old joins the Hammers on a one-year deal with the option of another and will initially join up with the development squad.
Belic became the youngest player to feature in the Serbian top flight in 2012 - at the age of 16 - and has represented his country at Under-17 and Under-19 levels.
The promising frontman spoke to whufc.com about his determination to reach West Ham’s senior team sooner rather than later.
“It's a dream come true for me and I'm looking forward to playing games and scoring a lot of goals, “said Belic.“I'm already loving it here!
“I'm going to go step by step, work hard and play well for the U21s. I'm looking forward, firstly, to playing for the U21s and then, hopefully, my dream is to one day play for the first team.
“I think it's going to be great here at West Ham. They're going to help me a lot and I plan to help the team a lot too. “
Belic outlined what he hopes to bring to West Ham and targeted next season as his senior breakthrough, adding:
“My job is to score goals and hopefully, one day, when I play for the first team I will score goals. That's the thing that I like the most and that's what the fans can expect.”
“Terry [Westley] told me a lot of great things about the Club. He showed me a video of how the Stadium's going to look next season and I told him that I'm hoping that next season I will play at that Stadium. I'm hoping that's going to happen.”
Belic’s acquisition becomes the last in a summer of frenetic transfer activity, which has seen twelve players arrive and nine leave in Slaven Bilic’s squad revamp.
The Serbian is undoubtedly the most low-key of the lot, but fans will be hopeful that Dave Hunt and the rest involved in recruitment at the club have unearthed another gem.