Watford have signed Hungarian striker Tamas Priskin from Gyori ETO for an undisclosed fee on a four-year deal.
The 20-year-old, who has three caps for his country, is manager Aidy Boothroyd's fourth senior signing of the summer after a trial spell.
"Everyone knows that the Premier League is the best league to play your football in," he told the club website.
"There's nowhere better than Watford for me to continue my development as a player. I'm really excited."