The inaugural Social Star Awards on Thursday celebrated the biggest names in the world of social media.So naturally, the stars in town for the glittery awards were tweeting and posting pictures of their fabulous time here on - what else - social media sites. Specifically, they had been working Instagram overtime.Actress Jessica Alba, who co-hosted the awards with fellow Hollywood star Jeremy Piven, posed and looked pretty with the likes of Aerosmith frontman Steve Tyler and producer-singer CeeLo Green.She played it cool and tweeted: "Just an average night w #Aerosmith @IamStevenT #socialstarawards #Singapore marinabaysands."Korean pop sensation Psy tweeted a picture with the veteran rocker as well - "Ladies and Gentleman!! It's one and only Steven Tyler!!!" Good to know that even stars get starstruck.