Li Weijia (; born 4 November 1976), also named Vega (), is a Chinese host and actor. He is the co-host of the TV program Happy Camp which airs on Hunan Satellite TV with fellow hosts He Jiong, Xie Na, Du Haitao, and Wu Xin.
Li was born in Changsha, Hunan on 4 November 1976. He is a graduate of Communication University of Zhejiang.