This paper studies the trends of foreign immigrants in Asia and their effect on the growth of the Singapore economy. The paper also discusses the key labor market trends and the rationale for foreign workers in a small open economy like Singapore. Further, the paper highlights key simulations of the impact of foreign immigrants on output growth and wage gap for the Singapore economy by using Thangavelu's (2011) dynamic general equilibrium model. The study accounts for the flow of skilled and unskilled foreign workers on (a) steady-state growth; (b) the wage gap between the skilled and unskilled workers; and (c) innovation capabilities of the domestic economy. Further, the model also accounts for the contribution of immigrants on the welfare of the domestic economy through the immigration surplus that will accrue to the domestic economy.