There is no doubt about it that Stevie Wonder is looking great these days, but what contributes to his already fabulous self? “I’ve been a vegan for two years, so that’s helped my already good-looking self,” joked the musician. “I think that eating healthy is important.” The legendary singer put his best green foot forward at Global Green’s Annual Pre-Oscar Party and told AOL why he’s supporting the fight against climate change. “We have to…